Wanted to start bringing my Silly Shells to games and wanted a method that was a bit better than “just throw them in a box”. So I put together a simple grid of holes to hold onto the shells. The grid is designed to allow the shells to slide easily in and out, so you'll need to combine it with a container if you want to move it around.
In the event that neither the standard or looser versions work for you I've provided the step files so you can modify the hole sizes to your liking.
The author marked this model as their own original creation.