As a way to recycle (upcycle?) the amber glass bottles the scents and/or oils I use for my soaps come in, I turn them into potion bottles for display. They make great shelf sitters, or Halloween decor for apothecary settings, mad scientist labs, or witch rooms (and they still smell good too!). I have a ton of these little bad boys, and will be adding photos as I get them taken.
The Wolfsbane bottle pictured now is a 16oz glass bottle, with label, chain, and a small bat charm.
We've used them to burn incense stick in, as decorations, or as fillers in our booth to give everything that creepy vibe ;)