There are all kinds of whips and I don't know what kind you're looking for, but you have checked out your local equestrian and tack shop, haven't you? That should always be your first stop, whether you're looking for straps, harness...whatever.

Any time you need to shop for kinky sex gear, your first four stops should be a tack shop, a pet store, a hardware store and Wal-Mart (in the old days it would have been Woolworth's).