We use a spray at work to clean our ResusiAnne dummy when we’ve been doing CPR practice in First Aid lessons. It is to get the glue from AED pads off. I’ll check the name. It would totally work!

But have you tried rubbing it with alcohol or nail polish remover?

So, this is an ancient post but whatever.

I find non-non-stick stuff at a local restaurant supply (esp good for heavy-duty half- and quarter-sheet cookie and cake pans. Sometimes Williams-sonoma has uncoated stuff, too.