I really liked the look of the initiative trackers by Cotanaj (https://www.thingiverse.com/thing:4597082) and created a similar v version from scratch that I thought would be slightly easier to print and doesn't use magnets.
I intended the clip and the main plate to be glued together but they hold together without it quite well.
There are two versions of the character plates. The ones without the opening can be used to glue of picture of the character onto them. The second version has space for a small image behind it so it's easier to swap. Both of them just press fit into place.
One version of the clip has a small semicircle attached that allowed me to print it with a brim without having to clean up the inside.
Have fun
The author remixed this model.