Duck Spinner
thingiverse
Most FTC teams have a 4 inch wheel for spinning the ducks onto the field for the 2021 Freight Frenzy game. This is a decorative topper that you can scale to fit your duck spinner and have a ducks that swim in a circle while you score those sweet sweet points. You can mirror the file to have the ducks going in the correct direction while you spin. If you scale this to 101mm in the X and Y dimension then your file will be 4 inches in a circle. This printed without supports or bed adhesion on my Ender 3 Pro. The photo I posted has my team's numbers on the ducks. I took those off for the STL download.
With this file you will be able to print Duck Spinner 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 Duck Spinner.