I got the decals off of my Weinmann DP18's and I have tried Goo Gone or whatever it is called and its not really coming off. They are polished so I don't really want to take a brush to them. Does anyone have a good way of removing the sticky film left behind by these hideous stickers?

Also, I have a 1976 Nishiki International and the decals are really dried and cracked. I want to remove them safely without harming the paint. I tried using a blow dryer to heat them up, but failed. Is there such thing a a plastic razor blade, or anything along these lines?

Any help appreciated here gents and ladies.