I call it that because it's alliterative, but only the silver on the chest is Sharpie. The black was more like a regular magic marker, and the purple was from a paint-marker set I got at Meijer, can't remember the brand.
See, this was part of a care-package I sent to my third cousins in Illinois during the lockdown, so I wanted to recolor Starscream entirely with markers, since boiling in dye might warp it enough that the transformation would jam, and paint would just chip with any play. What little wears off, I can just touch up with the same markers next time I visit!
Though as you can probably guess, I couldn't find the markers to bring down with me on the trip where I took these, as there's still visible wear on the edges.
I did try boiling some cubes from an incomplete
Don't Break the Ice game pink, but they just warped without changing color, so the energon cubes behind him were also done with just marker. I still don't think any of the kids watched the DVD I mailed with these, so they have no idea why I even bothered including them.
I've got a lot of older and better customs that I'll post as soon as I decide on a pic sharing site, I just got so tired of this experiment being on my phone that I had to show them now.