Freezer huh?  I haven't heard of that one but 
I've got a cel I don't really care all that much 
about that I'm willing to try it on.  I've had 
pretty good success with the 'blow dryer' 
technique as long as the sketch isn't TOO stuck.

Well, I'm off to stick a piece of plastic in the 
freezer.  My roommate already thinks I'm nuts 
and the cel was free-I have nothing to lose! 
Bwahahahahaha!

*ahem*

I mean "I'll get back to you on that one".