Upside Down Challenge Game by Hog Wild LLC | Barnes & Noble®
Amazon.com: The UpsideDownChallenge Game for Family & Kids - Complete Fun Challenges with Upside Down Goggles - Hilarious Fun Game for Game Night and Parties - Ages 8+ : Toys & Games
Seeing Upside Down – Kyle Heimann
The inversion glasses - AstroMedia
Sun Staches Upside Down Party Glasses - maskworld.com