To be honest, it was sheer laziness! The tub i had them in (which was tiny and had a lid with airholes) had loads of sawdust and bee pollen in. I literally just left it (knocked on it's side) for about 3 weeks. I have just taken out 6 moths (and put them in Hugo's cage before realising) and left in 8 cocoons (mind you, he likes those too). It was when i saw movement, that i started pulling apart this thing of congealed pollen, sawdust and what looks like web (i thought there was a spider in there as I found a spider in the locusts bin yesterday) i saw that there were a few large waxies in there, as i looked more and more, i have found loads, from maybe 1mm in length, to the size you get in the pot. In fact, it's fair to say now that I have too many! I have just transferred them all to a breadbin. Will need to add some more sawdust and bee pollen. i just keep them covered in it and they seem to like it. Still in shock at how many there are, and how tiny they are! God knows what I will do with them all.