Ring rubberbands around glass vases / candle holders. Spray paint frost. Remove bands. Love it! I think it may be pretty sweet to do this for favors, but instead of using votives, pour candle wax inside and make candles with these.
How to Make Mercury Glass Bottles from Old Bottles - using liquid silver lear, dirt and water. This is an easy and inexpensive project and is a great way to update unused and recycled objects - Villabarnes