Finished my custom LEGO Droidekas, and yes they are mini figure-scaled. How'd I do? : r/legostarwars
Lego Droideka and Magnaguard MOC - Brickhubs
Instructions for Custom LEGO Star Wars Droideka – Build Better Bricks
Custom Brick Design Droideka Battle Droid Type AG-1 - Custom figure made from original stones from the well-known clamping block manufacturer from Denmark and therefore fully compatible with Lego: Amazon.de: Toys &