Inflatable costumes typically come with their own small battery-powered motors to keep their shape as they keep you comfortable. These full-body costumes extend around your body, making social distancing easier to remember (hugs are difficult). The costumes themselves offer no extra health protection but at least no one will see you wearing a mask inside the costume.
This ridiculous costume, an oversized hippopotamus in a pink tutu, will surely make others smile as you make your way in this pandemic world. This one is highly rated and reviews indicate this one-size-fits-all costume indeed accommodates a variety of body types.
Dress up like a black and white cow with this awesome oversized costume. You walk in the front legs and the inflatable costume bulks out behind you with the cow's udders and back legs, making it impossible for others to break social distancing from behind.
Oh yeah! Dress up like the Kool Aid Man from those retro commercials. The big red pitcher is instantly recognizable. This one should be good for social distancing, but if not, you can just crash through the nearest wall to get out of the situation.
We could all use a personal robot nurse, especially in this time of pandemic. Dress up as Baymax, Hiro's sidekick from Big Hero 6. One problem though: hugs are on the menu for Baymax. You'll have to keep that part out of your cosplay in 2020.