Hello Ter960
Here in Britain we are given a phone number of an ostomy nurse who we can call on when we need help with anything. If you Mother doesnt have a nurse she can call,you could try phoning around the different Ostomy bag suppliers for samples. I cant speak for the other companys but I do know that Coloplast have people on hand that can give you advice over the phone.I have used the Coloplast drainable one piece Assure with velcro from day one. With the velcro,it means you dont have to fiddle about
with added clips that could be accidently dropped down the toilet.
If you type Coloplast into google you should be able to see all the different bags that they make. You will find the phone number there too.
I hope this helps