Hahah, now that's perfect timing! I'll pop this over there soon as well (along with some of my other old Fort Max pics), but I figured why not share it in this thread too!
So I've been on a bit of a Gurren Lagann binge lately (first time watching it and I'm up to Episode 17, but somehow that's the
one episode I managed not to download so I'm stuck there until further notice I guess, but that's beside the point) and I suddenly realized that what other line could
possibly be a better fit for that than Titans Return? Little dudes with faces on them that turn into heads for other bigger dudes, come on! My first thought was to 3D-model and print a TR-compatible Lagann, and that's still in the back of my head, but I decided
that'd be way too hard why not go
bigger? So with the help of Cerebros and some Lego, I present to you the very first Transformer-based Gunman!

Not too shabby if I do say so myself.

I discovered you can actually fit a single TM inside Cerebros' forehead if you contort them right, but it's also possible to prop them up so they're popping out to say hello! (Or to ask you who the hell you think they are.)

Light-up eyes! Nothing more to say here, except that my Cerebros has some awfully botched circuitry which means that he can very rarely make sounds properly, but it does mean that sometimes his eyes will light up and stay on which makes it easier to take these kinds of pictures!

I even made a """drill""" out of other Lego pieces, not that it's the most convincing (or sturdy) but I guess it'll do. It just sort of uses a Lego pin to sit in that screw-hole in the side of the leg - or the arm here, I guess.
He's even probably still compatible with Fort Max! Maybe. I haven't actually checked, but I don't see how those Lego feet would really get in the way aside from maybe having to bend the arms weirdly.
So, yeah. That's that. Here's some bonus pictures of Cerebros on (and falling off of) Devastator too. "Constructicon Maximus", anyone?
