Zhongshan factory swallow cup wine rack acrylic glass cup whiskey cup spirits Cup bullet cup holder acrylic cup tray,butterfly-Shaped clear acryli wine glass holder
● laser engraving,
● Hot-bend forming,
● Sticking, Cleaning.,
The way I determined the size to use was drilling holes in scrap Acrylic till I found a size bit that worked for the shot glasses. Depending on the style and kind of shot glasses you have you might need to adjust the size or maybe round over the edges or sand the inside of the hole a little.