Plenty of heat in the form of steam and slow, patient work with razor blades and paint scrapers. I once read a long and detailed how-to on it, but unfortunately don't have the link anymore.
Thanks. I have a broken ESP neck that was given to me. I want to make some picks out of the rosewood and maple.
heat and steam as said, use a iron (your wife or mum will be able to tell you what one is and how to work it ) on the steam setting. Lay a tea towel on top and steam through that. The couple I have done have actually come off really easily and quickly