tux loonie
thingiverse
tux in a loonie for shopping carts, thus never leave loonies in your car again just for shopping. Tux will do the job for ya. Instructions I have updated my skeinforge and slic3r settings a bit, turns out Tux can be printed well enough to fit on older shopping carts. Nice improvement and no need to change stl files.
Download Model from thingiverse
With this file you will be able to print tux loonie 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 tux loonie.