Does anyone know a good solvent for masking tape adhesive, that won't
eat plastic keys?  Some well-meaning soul put masking tape on the
plastic keys to mark the ones that didn't play.

Peeling the tape leaves a layer of goo and often part of the paper as
well.  Alcohol doesn't seem to phase it, and scraping with a plastic
card seems pretty futile.

Any thoughts?

Mike Blackwell
mblackwell@wallace.com