Cracking. Me. Up.
80's white ceramic mug. Unsure and slightly confused cat in a red rectangle says "I'm 40 and I've still got it! It's around here somewhere....." I relate! Signature reads J. Wagner. Base is stamped "Shoebox greetings (a tiny little division of Hallmark)." 1988. Scratches on interior, as is!
4" tall
3" opening