Glass harp by Robert Tiso

Robert Tiso plays the glass harp - or, more specifically, glass cups. Have you ever run your damp finger around the rim of your glass, which then emits an eerie note? Tiso takes advantage of that effect, making different notes and sounds by filling the glasses with varying amounts of water.

Here are several impressive performances of his (Find more at his YouTube account, roberttiso; I would be glad to make another post about this instead, if you'd rather ^_^):

                               
                                        ~ From YouTube, property of Robert Tiso