I came across "wheel shields'' that people use to prevent tire shine over spray from getting on their wheels. They might do the trick. There are a variety of styles. Even better, universal ones you cut down to size.
Wheel Shield Tire Detailing Tool | Made In Michigan | Michigan Made Products and Gifts
These don't look as nice, but they do appear to be cheap. 3/$20 + $6 shipping. Possibly cheaper elsewhere, and they may combine shipping when adding a single cover.
Amazon.com: Wheel Shield 3 pack: Automotive
Certainly not as perfect as a plastic copy of moon eyes style ones, but they are an option I suppose.