I have a Wyze floor vacuum that over a period of time, has lost the rubber wheels located on the bottom front of the vacuum head. I designed a replacement using PETG for an inner core and TPU (flexible filament) for an outer core. The inner core and outer core have a matching taper to keep the TPU centered on the solid core.

For those who do not have TPU, you can just print the solid version out of PLA or PETG and it should last for quite a while.

This is a very simple print and the parts are small, so print with high detail, solid and slow. a few rings of brim may be required or you could use a bed weld product.