To be honest, i really don't have time to get fancy.
I just use toilet paper rolls.
This is where my experience tells me something different than the one that i read from wormspit.com (it might just be a coincidence).
Mike is a pro in rearing this feeder, so i say go with him first.
Mike basically use paper clips and clip the toilet paper rolls together for stability and put it vertically (so, when you look down to the cricket keeper from above, you'll see circles).
I tried to do that, but they end up making their cocoon outside of the rolls and i try putting the silkies inside the rolls.. they all climb out, and again start spinning outside of the rolls.
So here is what i did differently: I put the rolls horizontal and tape the sides with masking tape for extra stability so the roll won't rolling around when your silky spinning the cocoon. So far, with the exception of one naughty silky, all of them have manage to spin the cocoon inside the roll.
Ideally you want one cocoon inside the paper roll.. but if you have 2 or 3, i say it will be fine too.