Perhaps you have seen type trays with many small compartments hung on a wall in someones home.
People often place some interesting object in each of the many cubbyholes.
The trays originally were used to hold type letters used in printing. You can make a similar tray from cardboard to display small objects such as an interesting rock, a valued penknife, an unusual small container or any other thing you wish. This project requires patience. It will likely take several hours of your time. But it may take a week to complete because you may need to wait many times as glue dries.