This site is for a men's personal lubrication, but it's 100% clean SFW, not even anything remotely suggestive (except some of the testimonials, but that's just text).
What's Unique:
Single product site. At first you think "that's easy!" but then you have to consider that the cart always has that product, minimum quantity 1. You must be able to adjust the quantity, and nothing else. And you must conform to the PSD file that the designer gave you!
How the cart works:
The cart is just a node that uses PHP Filter. It's really simple, it stores one value in the session, the quantity. When the user is ready to checkout, it uses the CartLinks to actually add it and go directly to checkout. The end-user never actually sees the product node or the "real" cart.
link: Mens1stHand.com.
This is my second ubercart site in production and I have 2 more coming later this month. All of them have custom carts! One I'm excited about that's coming out early June is a song contest where you have to "pay to submit" songs. I accomplish this using a condition, custom price module, and some other nifty tricks.
Hah, excellent theme job, funny logo.
I was showing an error on the checkout form related to no available payment methods that you might want to check out.