Remember when you were younger and you went to a nice restaurant and they served you water in a wineglass? And you learned that if you ran your finger around the rim, you could make the wineglass "sing" with vibrations- and at different pitches, depending on the amount of water into it?
This Instructable shows you how to turn a regular old wineglass into a musical instrument that anyone can play. You tune the glass to find out how much liquid it needs for a given note, then etch the glass with glass etching cream so that the notes are easy to find.
Put some fun back in your wine drinking habit!
Wait, wine is fun anyway.
Now it's more fun.
Step 1: Materials
Tuner (you can use your iphone or laptop for this; there are many free services)
optional precision measurement tools
optional extra containers for water