Funny this thread should start, because...
1) the bologna is getting low;
2) Ben and I had a brief conversation last week along the lines of "what about selling smooth wheel covers... seems like lots of members want them, and DIY seems to confound people". Then ruled it out for a couple of reasons;
3) Last week, out of the blue a friend who never looks at this forum asked me if I knew where he could buy moonies.
I do think there is a market for this, and it could be expanded.
Do it!