I purchased a pattern for one that sounds like it is what you want. If you are interested I can get it and give you the information off the pattern. Mine has a covered bag filled with child's play sand..that is used for a pin cushion as well. The bag is held open with that 1" wide purchased --can't remember the name of it..but it keeps the bag open at all times.
I don't know how to give you this information. Do we give out private email address?