I got this great idea from a friend for my dad's 50th birthday that is coming up. You have 50 friends send 50 items each day 50 days before his birthday. Each person secretly mails it to them on their day and don't put a name. Its funny because they have no idea why they are getting this stuff in the mail and who it is from. The items have to be something having to do with being old. I am sending him 50 black balloons and my sister is sending him 50 suckers with a card that says "50 Sucks". I have heard ideas like 50 tubes of bengay, 50 pairs of old man glasses, 50 asprins etc, but I need some more ideas.