Shop Mushroom Underworld | Threadless

Skip to main content

Tees from $15

Show: Products / Designs Sort by: Relevance / Trending / Popular / New

Mushroom Underworld Banner

Fun t-shirts and stuff designed by Steven Stwalley, the creator of Squirmish, The Card Game of Brawling Beasties. Squirmish is now also a videogame! Learn more about Squirmish at squirmish.net

We're sorry, there aren't any items that match your search criteria.

* Savings percentage and strikethrough pricing based on comparison to regular prices of the same items at full-price in Artist Shops or third party retail locations. Savings may vary over time.