One guy who recommended these to me says he cuts off the tab part and just glues it to the top of the box.
Ted C is building some very nice looking low profile pups he's calling the Downunder:
C. B. Gitty (Ben) said:
I have tried to figure out how they are able to sell stuff so cheap with free shipping. All I can figure is that the Chinese government is subsidizing the shipping to the US, for the purpose of putting the squeeze on US merchants... or that these sellers are just fronts for collecting valid buyer e-mail addresses, shipping addresses, and PayPal user account information.