Summary

Sauron here:
https://www.deviantart.com/xelandis/art/Sauron-Marvel-Heroes-XNALara-688678805

Why settle for my stl models or wait for someone else to get around to your favorite character?
You can pose these models yourself with free software Blender with xps tool.
Maneuver a model into a game piece pose and then you can export it as stl.
Share on thingiverse. I'm convinced you can do it.
Please help out, there are so many characters available at deviantart.

The necessary Blender DL info is here:
https://www.deviantart.com/johnzero7/art/XPS-to-Blender-2-7x-Blender-internal-the-easy-way-489500171