Mop & Glo ornaments with glitter

A couple friend's made these last year. Instructions were simple - put in Mop & Glo in glass ornaments, swish around and dump out extra. Put in glitter, swish around and dump out extra. Place cap back on, add ribbon & sticker (or paint on letter.) But, I found some online complaints about the glitter not sticking past the holidays, so I added a LITTLE school glue to the Mop & Glo. We will see how well it holds.