I love to etch glass! It's super simple too if you have a vinyl cutter. Simply cut your vinyl and apply to glass, coat in the etching cream (craft store), wait 5 minutes and wash off. Permanent and everyone will wonder how in the world you did it. Below are a few customized Christmas gifts I did, which were a hit! Make sure to cover any part of the glass you don't want etched, the cream is so strong that it'll actually bleed over.