The best man bought a number of condoms and passed them around to the groom's closest friends before the wedding. Immediately after the ceremony, each person cupped it in his right hand right before he shook the groom's hand (while passing through the reception line) so that it would end up in the groom's hand during the handshake. No one else (even the bride, who was standing right next to the groom) could tell what was going on. (actually, I think the bride found out after a few times because the groom kept sticking his hand in his pocket and was also turning red).
