Thank you all for your comments.
I live in the states and picked up the yellow can of Easy-Off. I figured I'd have, at least, a cleaner oven :-)
I took the Easy-Off challenge and it worked out pretty well. I did 2 separate applications, toothbrush and rinse about a half hour apart. I "massaged" the Easy-Off through the clear cheap garbage bag. The silver color went away quickly, underneath, the silver, there was this brownish-yellow residue that wasn't too hard to remove.
The green is a different story; I'll do more of the green tomorrow. There was no sign of styrene degradation of the body what-so-ever.
If anyone ever suggested to put an oven cleaner on "plastic", I would have said "you are crazy".
Thanks and see the pics!