BD-1 from Jedi: Fallen order and Survivor is a wonderful droid built for adventure and is an amazingly cute companion. This MOC is built to be in scale with Lego's recent R2D2, BB8, and other characters in that scale. I also tried to use similar techniques that Lego might use if they were to make a BD1 at a similar size.

(.22 scale, based on LEGO)

For example the Mech legs are used for BD1's Legs; but most of it is built with ball joints for pose ability, including the feet, shoulder attachments, neck, and head. The Antennae can also be angled differently. It's also very accurate and has great proportions for this smaller scale. 

Dimensions (Not including antennae):

• 3.2 in / 8.0 cm wide

• 2.7 in / 6.9 cm deep

• 4.6 in / 11.6 cm tall