@pod We stuck them in foam, then into small cell trays with some soil. We bumped them up to larger trays when we were seeing they were rooting. We didn't take the foam off until we were ready to put them into pots.
When I wrote "floral foam," I should have written Oasis, but I thought I'd have to explain what it was. Oasis floral foam will crumble in your fingers when it's damp/wet. Once it dries out, however, it doesn't absorb the water like it did in the beginning.