Fart Machine Methane Mugs
Main Tag:
Description: CH4 is methane, and you're the machine that makes it. This clean, nerdy fart pun spells maCH4ine with the methane formula glowing in FartMerch green. A gas-tastic gift for chemistry teachers, science nerds, dads and anyone who clears a room on purpose. GAS-TASTIC GEAR FOR EVERY REAR.
