As of this week, we're co-sponsoring the Weekly CG Challenge, an initiative of CG artists on Facebook. Each week, we'll be adding a 3-month Sketchfab PRO license to the pot. The other sponsor, Cocofur.com, is contributing Blender asset packs.
The next round just opened and the topic is 'Retro Technology'. Entries are to be submitted as a Sketchfab model. I'm sure you can handle that