Holder for bag used to store plastic bag for reuse

We have a bag used to store plastic bags so we can re-use them. You put plastic bags through the top opening and pulled out plastic bags from the bottom opening. Unfortunately the string broke so I created this holder to hold the bag and have the ability to mount it onto a wall using some sort of adhesive tape. I also created one outer component with screw holes in case you want to permanently mount to a wall.