If someone wants to try it. I don't need them. Get an unscented diaper, hit it with water, wait 15 minutes, and break it open. There you go-- water crystals. I would recommend trying it out on a few insects first instead of your whole colony.
I bought an 8 ounce container at a reptile show of water crystals for like $3 and they last forever and if you are real cheap they are reuseable. Like a teaspoon of it turns into a 2 week supply for your insects. Interesting though about the diaper thing.
I work in heath care and have attended may information sessions on diapers.
Diapers contain anti fungal and antibacterial agents to prevent infections. I would not advise that for water crystals. What goes into your crickets goes into your cham.