Well, I tried (marine plastic wheel covers)
 

I have seen many discussions of marine plastic whenever someone used or considered something else, so I ordered a 14'x10' sheet from Boat Shrink Wrap Construction Wrap 14. That was more than I wanted, but ten feet was the minimum length--$2.18 per foot, with free shipping. I bought a heat gun and tonight I tried it out.

I wondered how it would ever work, I needed to be able to attach the lugnuts!

It shrunk pretty well, except at the edges, and where I had slit it to fold around the back. The last picture shows a hole on the edge--that came all of the way from the back!

When I try again I will cut a slightly larger piece, cut out holes for lugnuts, and put a five-pound weight or something to hold it down as I shrink the rest to fit.

We will see how it goes, but it takes a while!

I haven't used this particular product, but I use (much thinner) heat shrink at work.

The weight in the center sounds like a good idea, but I wouldn't try cutting holes for your lug nuts until after it's been shrunk in place. Any holes or cuts will spread during the shrinking process.

Good point! Thank you very much!

Well, I failed again. I ordered these hubcaps Amazon.com: CCI IWC413-15S 15 Inch Clip On Silver Finish Hubcaps - Pack of 4: Automotive that I mentioned in http://ecomodder.com/forum/showthrea...tml#post314630 and I was all ready to ecomod, but my stock rims are completely different than others that I have seen. I think they are more attractive and hope that they are lighter, but they absolutely do not fit these hubcaps!http://ecomodder.com/forum/attachmen...9&d=1369439833

How does it stay put around the edges? Seems to me it would want to pull itself back over.

Well, the first one was a disaster. The I slit the plastic and it atrophied and disappeared wherever I cut it. I did not try the marine plastic with the new ones because I could not mount them on my rims.

I do not know if I will have the opportunity to try again, I may only be able to use hubcaps like mine on my Subaru, and the lugnuts complicate everything.

I guess that I will just fiberglass over everything! :D