A movement tray similar to my 25mm design. Slanted sides to keep bases locked in while picking up to move and a raised lip to prevent the models from slipping out during movement, but sized so that the models can be lifted and slid for easy removal during play.
I have added the outside case. One with holes and one without holes, though I didn't notice much of a different in print time. Make sure to print the bottom with support so the clips will work smoothly.
Be warned the lid locks tightly.
Please post any questions or comments that could improve the design and post make pictures with your models. I'd love to see these out in the wild.
amazon basic pla