lol! i really should get a discount for doing this :P
you can get them from Garage 88 at Eastern Creek. It's genuine by the way...

saw one of our forum guys here got his stuck on, on the day of BBQ meet last weekend!

you'll have to ring up for the price unless peeps here know the price.
here is a photo from one of our forum guys at the Garage88 meet/BBQ.