A box for Heroforge figurines. If your character is brandishing a sword over their head or riding a mount, they probably won't fit. The inner dimensions are 39mm tall, 25.5mm x 25.5mm
UPDATE - 05/02/2020:
I've updated the lid so it slides and locks into place.
Feel free to edit your own for larger minis.
https://www.tinkercad.com/things/0pzQOW3Mkgl-heroforge-box-mk2
Heroforge_Box_mk2.stl | 587.5KB |