Hobby Plus Terranaut Spare Wheel Cover

The Hobbyplus Terranaut is an awesome 8x8 RC truck. When buying wheels and tires, they all come in sets of 4, so you just have to get 2 sets and you're covered. But, you then have the OCD madness of having mismatching spare wheels. So, you could buy another set of 4, use two of them, and not use the others, or 3d print this cover and hide them! I think it has a cool utilitarian look, and nobody would be the wiser that the spares mismatch the new wheels!