Reminder- todo list

The project is a simple reminder/todo list tool. It consist of three stl parts: bottom, top and buttons. They should be glued to obtain this tool. The problem during assembling is proper size of buttons. They mast be moving tight in slots in top and bottom parts. Because of that two sets of them should be printed: small and large. This allows to select proper size for every slot.
The tool was designed for use with 3in x 4in sticky notes. But after printing the Elmer's disappearing purple glue and piece of paper works better.