All these ideas sound great. I would like to add the idea of a top opening where we could put a small hose (if you will) to be able to flush the contents into the toilet. It would be a cleaner, easier way to rinse both the stoma and the bag. If anyone has used the osto vent, I was thinking something like that for the hose to go to and you could put the stopper in when you're done.
Brane46 - have you heard of a knock off of potpourri called Just a Drop? It is a small pocket or purse-sized container with a nice-smelling liquid that you put into the toilet before you empty your pouch. It coats the top of the water, and when you empty it, it helps hold the odor in the water. I get it at Walmart, usually hanging on an impulse buy strip for less than 3 dollars.
Here's a link: https://justadrop.com/ Amazon carries it as well.