finger skis (link in description)
thingiverse
These portable sliding boards are simple fun solutions to combat boredom at work or find entertainment. They quickly glide onto your fingers and if you have the right size they easily slide off too. The dimensions of these slides refer to the space on your finger, with each slide being the same length overall. You can get small ones with an 18mm wide slot, mediums with a 19mm opening or larger versions with a 21mm width space. The printable design file for this mini amusement item has been transferred online to my small workshop website at http://www.myminifactory.com/object/finger-slides-3547. Instructions They print perfectly well with supports but I'm not sure you'll need them because the extra structures never touch the actual slides and I designed the ring part of these sliders so it prints without support and the tips on top slide off surprisingly well even when they're printed without support.
With this file you will be able to print finger skis (link in description) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on finger skis (link in description).