hmmm..I once ordered a Sky King ring...square thing with hinged lid & magnifying glass so you could put pictures under it...and a little telescope ring that you could thread a tiny film strip thru...(I forget whose that was)...also, Nabisco shredded wheat used (1947) to put Buck Rogers space ships made of cardboard as dividers...punch 'em out & fold 'em up!

I'm sure there's a couple others...I had LOADS of 10 cent comics that were lost in a flood back then...I coulda been rich!