Sorry to disappoint, but I haven't made one, just throwing an idea out there! I just came across this head, it's from a megabloks neoshifter called atlas:raan, it looks like it would make a perfect starting point for a straxus. Apologies for the following terrible attempt at a digibash, i'm a good photoshopper but on g/f's laptop at the moment, which means using a trackpad and mspaint! You get the idea anyway. Go on jin, you know you want to!