Yes please to all! I'll take as much as I can get.
I also just updated the list to include nematodes and shrimp molts. I'm thinking that I'll break the class up into 5 groups of 4 kids, or 4 groups of 5 kids, and each group should have a sample of each, if I can collect enough.
I have a small terrarium with a roach that has a lot of springtails living in it...do those count? I see springtails living on my floaters too? >_>