On Jul 7, 4:58*pm, Jeff The Drunk wrote:
On Wed, 7 Jul 2010 13:33:24 -0700 (PDT), Ron
wrote:

On Jul 7, 3:00?pm, "Michael" wrote:
Does anyone know how to remove Crayola Invisible Marker from ivory piano
keys? Warm soapy water didn't work.
Thanks

I would try a pressure washer.

Gas or electric?

Either.