Call me old-fashioned, but I prefer the little chain put on pens to keep me from walking off with them. I was at the bank the other day, and instead of a chain, it had this big plastic spoon taped to it.
It occured to me that this only encourages me to steal the pen. If I didn't have enough sense to remember something like a pen when I left the house, I sure didn't think to bring a plastic spoon. And you never know, I might run across some pudding. Then I'd be glad I swiped the pen-spoon!