Step 1: Find a big piece of paper to lay down on top of the grungy dining room table.
Step 2: Spread out all of your origami paper so you can decide which you want to use. The messier, the better.
Step 3: Spread as even a layer as possible of Mod Podge on the back of the glass tile. Lay it carefully on the paper. It turns out that it helps if you squidge the tile around a bit to get it in the correct place. Squidge, of course, is the technical term.
Step 4: Wait patiently for the Mod Podge to dry. While you are doing this, you might wish to work on another project. Or two.
Step 5: Trim the paper. Speaking from experience, you reallywant the glue to be dry. If it isn’t dry, you might tear the paper and end up with an ugly present that you are embarrassed to give to your sister’s girlfriend. You also want your craft knife to be sharp. This is especially important when your craft knife is 10 years old and you’ve never figured out how to break off the first of the clearly-meant-to-break-off tips.
Step 6: Attach the pin back. The pin backs that I have in my bag o’ bead-related-stuff are self-adhesive, so I just peeled the paper off, centered the back on the back of the tile, and pressed. If yours aren’t self-adhesive, I would use some E-6000 super-strong, super-smelly glue.
Step 7: Enjoy your handiwork!