Nice little Turkish Drop Spindle that produces a center-pull ball
They're designed using a laser cutter, the SVG files may be sent to the cutter to produce the raw components
These can be done in almost any material, I've used Hardwood & Acrylics
They're designed to use a restraunt "chop stick" and the center square privides a nice solid mechanical connection when spinning the spindle
We used these as a fund raiser for the International Back-to-back project, $30 for hardwood, $10 in acrylic
(I ask that you use any profits from production of these to charitable causes)
Design File Downloads: (SVG=ScalarVectorGraphics files to feed to laser cutter)