Here is my attempt at Q9-0 (aka "Zero") from Episode 6 of the Mandalorian. I loved the look of this character and had to try to recreate him. The head did not come out quite as accurate as I'd hoped, but still an action looking droid nonetheless!

Recipe: HK-50 head with mouth piece from R-A7 and eyes sanded down from 4-LOM. I customized the blaster from a Force Awakens Snowtrooper blaster and a GI Joe SMG. I painted the harness which is from Marauder Gun Runners. Lastly the antennae came from an ROTS Clone Trooper.