Kissing booths

Kissing booths...They've always seemed about as desirable as stocks and pillories. Of course, I understand raising awareness/cash for a worthy cause (e.g. when Kate Moss sold a one-minute, £60,000 kiss to benefit the Hoping Foundation--the man who bought it ceded his kiss to Hugh Grant's girlfriend; fittingly charitable and salacious). Elsewhere, you've got bear-kissing booths ("just a small part of a larger twice-daily presentation about wild bear safety"), pug-kissing booths, and then there's always the underseen 1988 documentary starring Quentin Crisp, The Kissing Booth. Has anyone ever staffed or patronized one of these booths? If not, what's the strangest/coolest/most grueling thing you've ever done in the name of charity?