Cat BoxBy Lurch204 in LivingPets83416FavoriteSolar-Powered Desktop Fansby schou in SolarBuild a Cat Litter Box Fan With Arduinoby jpayne6 in ArduinoOdorless Cat Litter Boxby astilly in Life HacksSolar-Powered Fanby MPry in SolarLitter Box Vent Fan - Eliminate Cat Litter Stinkby engineerable in PetsHow to Make a Solar Powered Fan!by Gjdj3 in Solar