Well, Amazon.com is okay HOWEVER it's not an Australian website so..
craigslist.org
One can purchase Aussie shampoo at the local superstore Walmart. One can also purchase Aussie shampoo on any online websites such as Amazon, eBay or the official Walmart website.
You can only buy "aussie" hair products on Ebay or contacting them directly on the website.
eBay
Yes, eBay or any of the other auction websites will allow you to sell your things for money.
A person can purchase different styles of large vases online at different websites. Besides eBay and Amazon, one could check such sites as Overstock, Nextag, and Porterhouse Crafts.
There are websites that offer eBay codes. But eBay itself has eBay bucks.
eBay
a cosplay site...(cosplay.com)
Amazon.com and Play.com.
Try searching the web for the model of the vehicle. There's bound to be a few websites out there dealing with that specific make and model.
Beezid.com. I think