This is just the type of thing that the lovely Mrs_B is afraid I will bring home. You really have to read the guy's description to fully appreciate it.
http://cgi.ebay.com/ebaymotors/Skid-Steer-Sno-Cat-Off-Road-Train-Snow-Groomer-N-R_W0QQcmdZViewItemQQcategoryZ6737QQitemZ4588002371QQrdZ1
http://cgi.ebay.com/ebaymotors/Skid-Steer-Sno-Cat-Off-Road-Train-Snow-Groomer-N-R_W0QQcmdZViewItemQQcategoryZ6737QQitemZ4588002371QQrdZ1