First up, we have this lovely hourglass. A acrylic tapping has to be my favorite trigger. There's something about the crisp, clear sound that sends tingles down my spine every time. This hourglass in particular has been with me for about 10 years now. It's seen in better days, and you might notice a bit of wear and tear on the corner, but I think that adds character more importantly. It doesn't take away from the relaxing sound it produces.