Passing time trying to find my black Sharpie for my latest Symbiote Spidey, I took my silver one and covered all the gray on Iron Man, including bending all the joints and reversing the hip joint to get both sides.
A word of notice to anyone who wants to do this: when you get done covering the gray, seal him up like no other. Why? Well for starters, he stinks like a beach now, and he's sticky as all hell. This may be the reason I finally get a sealant. Also, the Sharpie wears of pretty quickly (I gotta wonder why the black isnt doing that on Spidey). It gives a sort of a worn look which I like.
So, one silver Sharpie, a case of carpal tunnel and an hour and a half later, I got an Iron Man worth the highest shelf. Thanks goes out to Kyle Robinson, who inspired me with his custom.