Have you ever participated in a Secret Santa? Basically, a group of people buy gifts. We generally set a minimum price and if someone wants to spend more than that it is up to them.
All of the gifts are wrapped and placed on a table. Numbers are chosen randomly and then the number holders (in numerical order) choose a gift from the pile. It is considered poor form to choose the gift you purchased.
One of the places I worked at used to do this. The funniest gift I ever saw was a pair of old men's underwear. That's right. Underwear. Old, whitey tighty men's underwear. So old that there were wear holes and the fabric was slightly grey.
The person receiving the gift was perfect. If I had to choose one person in the whole room to get that gift it would have been him. He is very likable, but very spastic as well. That means he is a lot of fun to get wound up.
When he opened the gift it was priceless. His jaw dropped slightly. His eyes got real big. You could see anger, disbelief, shock and just a little bit of amusement flash across his face.
"Somebody gave me an old pair of drawers?"
There had to be at least 30 people at that party. All of us were laughing. Tears were streaming down my face. He ranted for a good 5 minutes.
The gift giver happened to be a real good friend of his. So, he did not go up to him until the party was almost over. The gift giver's plan was to take the recipient out to eat (and he did eventually), but when his friend got the old underwear he dragged it out for as long as he could.
To this day I have never had so much fun during a Secret Santa.