Awww...that is tough! But you are making progress!
Treat dispenser is a very good start because that is how they learn to trust you and that you(and your hands bring good things).
Once they venture out of the pouch...take it and sit on it so they won't run back in and hide. If one still tried to stay in...work him out from the bottom up slowly like squeezing out toothpaste(scoot him out but holding the back of the pouch and squeeze him out).
For toys I bring in a tree house and a ball pit with ping pong balls, some weebles, a feather teaser, and you can hang stuff from the top of your tent for them to climb on.
I have a gengi tent and they are mostly mesh so the gliders like to climb the mesh and jump onto me.