Come up with a unique origami to do with your ball sack skin. It'll surprise and delight them, and then while they're in a genial mood you say "oh also how do you like my new haircut?"
Make it political, if your friends are on the left, tell them it's to support Palestine or something to that effect. If your friends are on the right tell them it's the Maga Bush or something, either way when people get into political mode all other thinking vanishes and they'll just be supportive of anything for their side and you'll be getting pants down haircut love.
As long as you wear your "dicks out for harambe" shirt then no one will say anything negative and they might even stop to admire the trim and scalp of your testicular gerry curl
Two words: assless chaps