I am going to die of feelings and it's all Mikey's fault.
I was looking through some HD promo pics of the guys trying to get better references for their various body mods when I noticed that in addition to the turtle tat on his left bicep Michelangelo has some script running down his left forearm.
Between the fine, delicate lines of the lettering and the textured shine of his skin you can’t really make it out in any of the other big promo shots, even those where his left arm is prominently displayed. But then I found some pictures somebody had taken of a cardboard promo display, which in addition to giving a clearer view of his turtle design…
(the same turtle is on Splinter’s medallion, Donnie’s mask, and the armband tattoo around Leo’s left bicep; Raph probably has one tucked away, too, but I couldn’t spot it in any of the pics I have)
gives a nice clear look at his forearm
WHERE HE FREAKING HAD EACH OF HIS BROTHERS’ NAMES TATTOOED IN A BEAUTIFUL SCRIPT THAT BEING A GRAFFITI TAGGER HE PROBABLY DESIGNED HIMSELF OH MY GOD MIKEY YOU PRECIOUS SWEET CHILD.