I have finally tried out the amazing Stamp & Stick Gluepad from Stewart Superior and it is really fun! The way it works: You stamp your rubber stamp image with it like you would an ink pad; then heat it up a bit with your heat gun or embossing tool. The glue-ink becomes tacky and then you can stick glitter, Moon Glow Powders, chalk, or other light-weight goodies (like metallic flakes) onto the image!
It's very cool!
I'll get a sample up here within a few days so you can see the end result.