they can be found here:Hi - I saw the pic of your Smart on the forum and wondered where you got the wind up add on? Part of the deal when we bought ours was that my husband insisted we stick one of those on but I have done nothing so far, and your picture reminded me. Did you make it or is it commercially available? We're in the San Francisco area, so there is little chance of us stealing your "fire" if you want to share your source with us. Thanks!
Oops! - I think this went to the wrong thread. I thought I was replying to the person with the wind up thingy on their car. Sorry. but if anyone knows about them, please let me know. Thanks.