Since the custom autobot tracks was so "popular", thought I add this in but the auction is ending in 1 hour's time....

Looks great and quite innovative. The launchers/blasters are from Dark Crumplezone (as told by the seller when asked) and using earth magnets to hold it together onto Prowl

http://cgi.ebay.com.au/ws/eBayISAPI....MEWA:IT&ih=004