I decided to have a go of making it. I cut out a long piece to be the belt and then cut another piece for the flap to close the pouch.
This is what I came up with and I am very pleased with how it has turned out.
This is the front of the pouch with the belt though it.
I am going to put velcro on the belt for it to stay on his waist. I am also going to add some velcro to the flap to keep it down.
This is the back of the pouch. I put in some big button holes to thread the pouch though. The belt is a bit wider than the button holes but that is fine. I don't think the belt could be much thinner and fit the velcro on.
It was a bit of a learning experience also and I will do a couple of things differently when I make him another one.