This is probably a really stupid question, but as you're already talking about them, it seemed the natural place to ask. - How do you get the things on in the first place? I just bought the golden ears Mickey one, and it doesn't fit. Do you drill the hole bigger, remove some sort of cap already on the antenna, or what? (If it's different for different cars - I have a Mercury Sable wagon. The antenna is supposed to retract, but doesn't go in all the way because of some happy glitch, so I bought one anyway.)
P.S. - I also bought a back-up (the golf ball with Mickey ears) because I was afraid the glitter would come off in the weather. I wouldn't have imagined people actually steal them. - How positively un-Disney!!