Japanese cosplayer poses with live octopus for Hokusai shunga cosplay

As you can see when browsing the vast inventory on eBay, these outfits are often designed for babies and toddlers. This is likely because these ensembles are perfect for little ones who spend most of their time sitting or crawling. The costume typically consists of a comfortable onesie with a hood and four extra appendages that match the suction-cup covered fabric on your baby's arms and legs. Some kids' octopus costumes consist of a hood that has tentacles that begin just under the neck, concealing the child's body. Of course, people of all ages can get in on the fun of dressing up in octopus costumes.