Something boot surprised me with for my birthday recently. I kinda have a thing for robots and he took advantage of that in the best possible way aaaaaa ;3;
ALSO SPOT THE HIDDEN SYMBOLISM AND WIN A PRIZE. (there is no prize). Boot hid part of a particular symbol in cullen's markings for shits and giggles . I have no idea why, but I got a laugh out of it :V
Link
Zaph
I hope these markings are going to become canon.