It's no surprise that the Iron Man costume is one of the most popular Halloween costumes. Aside from being one of today's most popular characters in pop culture, the suit is notable for its futuristic humanoid appearance. With the success of the Marvel films in the past decade, more and more trick-or-treaters (adults and kids alike) are creating Iron Man suits, even with very limited funds.

This Mark III Iron Man suit, composed of polyurethane plastic and fiberglass resin, costs $4,999, making it the most expensive Halloween costume to date. The costume also includes LED lights and sound effects to resemble Robert Downey, Jr.'s suit from the "Iron Man" and "Avengers" movies. Despite its realistic appearance, it is difficult to put on and allows limited mobility.

Price: $4,999

This fantastic RoboCop outfit is one of the more impressive products on our list. If you think it looks high-end, you're right: it's composed of ABS plastics and fiberglass, and it's fairly strong, weighing only 22 pounds. The optimal fit is for a 6'2" reasonably fit guy, while it is modifiable for wearers of varying sizes.

This adult outfit is based on the uniform featured in the famous 1987 film and includes everything you need to look like the cyborg hero. A full-body jumpsuit with foam armor components affixed to the chest, wrists, and legs is included in the costume. The boot covers are linked to each leg, allowing you to wear your preferred a pair of shoes while still looking like Robocop. Printed details make you look like you're ready to blast some bad dudes to oblivion, but the last element of this costume takes the cake. The headpiece is a foam device that goes over your head and has a visor and chin protection on the front. Simply put on the entire ensemble, and when you hit the streets, crime will be trembling in its boots!

Price: $3,550

Composite Effects, an American prop company, sells some of the best Halloween costumes on the market today. Despite selling expensive costumes (mainly masks) to the public, quality is never an issue with any of their items. This is especially true of one of their most popular items, the Game of Thrones White Walker costume ensemble, which costs $3,175. So far it is always in the top of the most expensive Halloween costumes

The kit includes a silicone mask, gloves, and torso that are inspired by the show's menacing White Walkers. Mr. Fiennes plays King Eurystheus in the film, and designer Jany Temime produced this spectacular costume of hammered gold metal and leather with a thick peacock feather cape. Customers can also select from a selection of mask and glove designs. Despite the lack of a full bodysuit from Composite Effects, the mask is more than adequate to win any "best costume" award in any Halloween costume contest.

Price: $3,150

Costumes from the Greek and Roman Empires are very popular for Halloween. These costumes radiate a combination of beauty and sophistication, from the helmets to the armors and even the capes. They aren't inexpensive to construct because they all have so much detail, with the most expensive one costing $3,050.

The outfit is based on King Eurystheus' (Joseph Fiennes) from the 2014 Greek mythology-inspired film "Hercules," which also starred Dwayne Johnson and Ian McShane. It consists of a Spartan helmet, golden apron-like armor (also known as "peerages"), and a black cape. Detailed designs are also embedded in the armor, which resembles the armor worn by the Ancient Greeks in real life as well as in the film.

Price: $3,050.

Because Halloween is all about mystery, this is the occasion when people like to dress up in costumes that are discreet and look dangerous. Because of that, probably nearly all Halloween costumes are dark, looking strong. However, the Vintage Playboy Bunny costume is probably an exception. This Vintage Playboy Bunny outfit from the 1970s sells for $3,000, definitely making it the most expensive piece per square inch.

The original Playboy Bunny outfit was created by Ilse Taurins' mother, a Latvian immigrant. Victor Lownes III, one of the Playboy Club's co-founders, was dating Taurins at the time. Taurins had recommended a rabbit or bunny costume based on the Playboy Magazine trademark, and she had her seamstress mother build a prototype. After that, every Halloween season, this costume model is loved and used by everyone. With a swimsuit-like design, eye-catching and colorful, the outfit looks pretty adorable. At $3000, this is definitely one of the most expensive Halloween costumes of all time.

Price: $3000

They say clothes make a man, but what if you were Superman? Superman's costume is one of the most iconic in comic book history. The image of a strong, talented man fighting against evil has become a legend. So, a famous Halloween costume that seems to be every kid wants to wear is the Superman suit. But one thing people don't expect is that there is a superhero Halloween costume for sale for $2,999.

Similar to the design of the original, this skin color is mainly red, blue, and yellow. Still a tight design with a cape tied at the back, this outfit has been loved by thousands of people around the world.

Price: $2,999

Many people still consider Christian Bale to be the best Batman to ever grace the big screen, even after he retired as the caped crusader. The suits he donned in the "Dark Knight" trilogy ("Batman Begins," "The Dark Knight," and "The Dark Knight Rises") are part of his legacy. Despite the fact that the outfit resembles military body armor rather than comic book spandex, it is still adored by millions of fans worldwide.

Propmaker UD Replicas has created a Dark Knight replica suit, which it is presently selling for $2,500 online. The Batman costume, in particular, is made entirely of leather and includes every element of Batman's suit, including the Batman chest insignia, arm blades, and utility belt.

Price: $2,500

Tobey Maguire's web-slinger version continues to hold a place in the hearts of millions of fans across the world after more than two decades and two new Spider-Man actors. His films (all directed by Sam Raimi) are widely regarded as among the best superhero blockbusters of all time. Because of his huge charisma, his Spider-Man costume also became a famous product in the Halloween season, loved and used by many people. There is a special outfit that costs up to more than 2000 dollars

Premium athletic material and a pre-shaped 3D printed face cover are included in this Spider-Man outfit from the 2000 Spidey films. Hand-applied rubber straps with molded urethane and running shoes taped to the outfit for improved movement are also included. The cosplay suit is currently available for $2,500 on eBay. With this amount of money, this costume is definitely in the group of the most expensive Halloween costumes

Price: $2,500

Hulk (also known as The Incredible Hulk) is a prominent character in the Marvel universe, just like Iron Man and Spider-Man. And, like his Avengers predecessors, he makes an appearance on Halloween, when people dressed in inflated Hulk costumes knock on doors and ask for sweets.

The Hulk muscle suit, which costs $1,200 on eBay, isn't as attractive as the other costumes on the list, but it's still a nice buy for Hulk enthusiasts. The costume is constructed of cloth and foam fiber and is completely handmade. The purchase does not contain Hulk's trademark violet shorts, which must be purchased separately for an additional $50.

Price: $1,200