I too have used great lakes hornworms, they are prompt and very lively. I got two cups of eggs, which are still growing. I thought I would get them that way since they grow so fast and with enough food for my juv to get them to 3/4-1" size. I also got some at a show last week and they didn't last too long and still have the cup with chow and will put some in there eventually to let them get bigger.