Hilary,

They are sold under the MiniCarb brand, but I think someone mentioned they were a CarbSense product. I was able to buy some at our LC store.

So far I haven't found anywhere else that carries them (even online). The LC store I use does ship, so I'm sure they could help you. Their number is (847) 816-0738. I doubt they have a large minimum order or anything, since they are a really small operation.

I hope that helps.