found this
http://cgi.ebay.com/ebaymotors/Pontiac-GTO-Piston-Key-Chain-Keychain-Brand-New_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem562b891fa6QQitemZ370097594278QQptZApparelQ5fMerchandise
‘Is that a piston in your pocket, or are you just pleased to see me’! :lol:
Sorry could not resist a little humour.