I run a store that sells them:
www.buyahash.comWe're currently out of stock, but we're slated to get a lot on Tuesday. We can usually ship within the next day.
Until we physically take possession of them, they're just $8.00 USD with free first class shipping in the US. We've already sold hundreds in our first batch. We're also preparing to partner with other manufacturers for some additional products and innovative extenders not offered by any other store.