Trying this-Magic Eraser uses... did you know you can cut a piece off and float it in your toilet overnight and voila! no more toilet ring! -clean window screens (even when they are still in the window) The website has a list of about 100 uses!
Remove melted plastic from the side of the toaster oven. 32. Remove toilet bowl rings- apparently you can simply cut off a piece of the Magic Eraser and let it sit in the toilet overnight to clean. Sounds easy enough to me! 26. Remove adhesive residue after removing stickers. 25. Remove tarnish from silver. 24. Remove dried paint from door hinges.