Linda with “Linda’s gone buggy” always has some, same with Morifeeders. Personally, I only buy mine from Morifeeders. Silkworms die very easily, it’s best to buy large size and feed them off as soon as you get them. Their food molds quick, some randomly cocoon, and the slightest bit of humidity kills them. You can’t let them get to dry either though, they’re very complicated. The silks from Morifeeders seem to be hardier. Buying in bulk from anywhere else (40 +) You can expect that about 20% will be DOA, 30% will eventually die or cocoon.