This is a small portuguese "Tuna" tambourine, made for a friend. You can add a couple of M6 washers to any of the columns around the circle, this will give it SOUND! I add a little bit of adhesive to the top, a keychain and some fabric stripes, since it gives it a better look. If you want to know more about portuguese Tunas: Here's a few more info on wiki about Portuguese Tunas. http://goo.gl/UvS4av This is Tuna Templária de Tomar, performing a Tuna's tambourine song. https://www.youtube.com/watch?v=C6wU3W-un3s&feature=youtu.be NOTE: This is not an exact scale replica. Layer Height - .2mm Shell Thickness - 1.0mm Density - 20% 1st Layer Thickness - .3mm No support needed IMPORTANT! If you're planning to add M6 washers, you'll need to do it while printing. I didn't paused my printer, instead I just dropped the washers after the hot end passed by, keep in mind that you need enough layers to cover the M6 washer height, otherwise the hot end will probably get stuck in them!!!