A simple solution to get the helmet off my desk and a little more on display.
It is mounted using two screws. To mount it, you'll have to remove four studs that are on the bottom of the model.
I haven't checked if the other Lego Star Wars Helmet sets will fit on this or not. All the bases look the same but I'm not sure about the depth. If you have one of these models and need a deeper base let me know!
I printed using PLA with 20% infill at a layer height of 0.28".
The author hasn't provided the model origin yet.