Buzz lightyear off to my keychain. I know buzz have many technologies in him. He can fly. He can breathe in the space. He have built-in justice laser gun. He's Artificial Intelligence keychain :).
But I got new idea. Since I love trouble, I replaced buzz lightyear with RFID tag. It can cause trouble if there is a RFID reader(with the same frequency) within the vicinity. Then everybody will be checking me.