I made a tire to fit my old model Tonka MGA 1:16 scale.
I've "painted" the model when I was about 3 years old, so the paint job isn't great. But I have some memories of this car. Only a few tires were missing (had 1 left) over the 30 years I got the model.
I added a very thin disk (last photo) to prevent support on the inside. Just open it up (little drill or knife) after printing and put it on the model.
The author marked this model as their own original creation.