I've received loads of memorable gifts. I once got a boomerang from a girl friend of mine because I couldn't afford to go to Australia. A good sized stone gargoyle that hangs around my computer and scares away evil spirits

An old fashioned globe I received from a girlfriend who wanted to see the world with me, even though we didn't have the money.
As for horrible gifts, my uncle (he married into the family) is a real sleazeball, thinks he's funny, makes real lame or dirty jokes to shock you, buys shit from Sharper Image and other novelty stores, kind of shit head. He thought it would be hilarious to buy my cousin, who just broke up with her betrothed, a gift to replace the man of the house. On Christmas day, in front of the family and their children, my cousin opened up her gift. A personal "massager." That's what it said on the box anyway, but it was bright pink and fleshy textured and everyone in the room knew what it really was. Of course, the shit head uncle is snorting his ass off pleased at his joke and marvelling at the greatness that is he. It was uncomfortable for everyone, but particularly embarassing for my cousin and we all felt really bad about it.
Talk about karma, a few weeks later at his New Year's bash, the shit head uncle got drunk, fell off a short stone wall that he was trying to walk and seriously fucked up his knee.