Took out the old drawstring and added more pockets and it's better. You can push the dice in or let them shut at the edges and have a nice dice tray, so they don't escape when you roll them. They'll be more trapped when I put a drawstring back in, but you could probably do it so it'll lie flat.
I made a dice bag and I'm mildly obsessed. I am going to go back and add more pockets and probably fix the drawstring, which in hindsight doing past midnight on a work night maybe wasn't the best idea. #sewing