Star Wars: Force Awakens SN-1F4 Sifter Droid from Niima Outpost

This is SN-1F4, this little clear domed droid modified from a shop-vac in the background of Niima Outpost in Star Wars: The Force Awakens. He is scaled for the 3 3/4" figure line, though the scale is a guess since there is little evidence of what size he should be exactly. The dome is most effective is printed in a clear filament. The dome mount would have to be glued. I tried to press-fit it, but there are simply too many small diameter fixed posts the holes have to hit to have a decent press-fit.

I have been teaching myself to model by making the obscure background droids form the Star Wars saga that were never blessed by the figure fairy (and a couple that were, but were done poorly). Requests are welcomed.