Here are some handy 2" square magnets in several styles with all the numbers from zero to nine; this is especially important of you have so many refrigerators that it's hard to keep them straight.
The same is true, I'm sure, if you have so many shopping lists that you have to assign them a priority.
The fact is, you can use these for anything you like. I can't predict what metal things you may want to number: I can just give you the numbers to do it with. And, look! I have!
The art on these pages is copyrighted, at dates between 1997 and the present, by Bradley W. Schenck. This web site is entirely safe when used as directed. The large print giveth, and the small print taketh away. If you're reading this you are way, way too close and - possibly - you have too much time on your hands.