You peel the cork seal out of the cap

You peel the seal out of the cap, then use the cork to attach it like a button onto your t-shirt.
Posted by: Mike Hammer

Whoa! Yes. Didn't even know I had that memory until you poked that cell.

How about little wax bottles of sugar water?
Posted by: Mike Hammer

And Yes. Wife says the local dime store in her neighborhood had those little "pop bottles" and the same stuff in tubes. Outside their door, spread both directions on the sidewalk for quite a ways, was a coat of wax -- black, because it got walked on and dirty.