What would be some good challenges to add to a "pledge board" like in American Pie: Beta House?

Me and my mates are all 16, all have girlfriends and all drink alcohol. We have a garage to ourselves which we've converted into a "lad's paradise". We were thinking it would be cool to have a "pledge board" like in American Pie. The ideas can be as crude or crazy as you want! Any ideas on what we could do?!?!