I have a piece of high-end rolling luggage. Unfortunately, one of the wheels had been stripped down to the hard plastic. It still rolled but was annoyingly loud.
Rather than send it out for repair, I came up with an idea to use a squeegee rubber as a retread. I cut off the raised part of the rubber so I was left with just a flat piece. I then cut the length to the circumference of the wheel and glued it on.
It worked better than I hoped. The wheel rolls beautifully and is even quieter than the other one.
There might be some money in this.