Centipede
thingiverse
This is a rework of https://www.thingiverse.com/thing:2862441 And that is based on 8ran's wonderful slug. My wife thought it needed legs ;) If you want to have a go at modding it further, here is my TinkercAD file... https://www.tinkercad.com/things/25Km9SCQdMc-centerpeid It is pretty rough but works :)
Download Model from thingiverse
With this file you will be able to print Centipede 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 Centipede.