You can be Mermaid Man & Barnacle Boy this Halloween. They are the cool superhero characters in the Spongebob Squarepants animated series. This is a perfect duo costume idea for best friends. You can check out more of this costume at Reddit.
You can buy the Mermaid Man costume & Barnacle Boy costume at SpiritHalloween.com.
You and your best buddy can team up as Willy Wonka and Oompa Loompa at your Halloween party. This is a great duo costume idea for best friends. Dress as the fun characters from the book Charlie and the Chocolate Factory. You can check out more of this duo costume at Flickr.
You can buy the Willy Wonka costume and the Oompa Loompa costume at HalloweenCostumes.com.
You and your best friend can be the Squid Game guard and player at your Halloween party. They are the perfect duo costume. This costume was made DIY with materials used such as duct tape for the player number. Some of the items were bought from Target and improved upon. You can check out this costume at DesertChica.com.
You can buy the Squid Game guard costume and Squid Game player costume at HalloweenCostumes.com.