Adding my agreement with being able to freeze them. Back when I purchased them, I would usually leave them in the store package and put that into another ziplock. They are fairly easy to separate out while frozen. Good tip from Annarchy about oiling the corn ones to help with cracking!
They are very easy to make from scratch, so now I just make them as we want them. After tasting the first batch, DH declared that we wouldn't be buying them again....