We got ours at Doodlehopper during the Thanksgiving sale (20% off!!!). We took both sets they had in that store, but they said their Falls Church location had like 9 sets in stock. So if anyone is still looking, you might want to call the Doodlehopper in Falls Church.

Thank you so much for posting! I've called and googled all over looking for these but they're all "back ordered". I appreciate knowing why. Thanks!

Don't buy them right now. The company's manufacturer in Thailand got shut down by flooding. Many places will accept you order, but won't deliver them until later in the Spring. Some stores that have supplies in stock are charging ridiculously jacked-up prices for what they have.