Could just be an some kind of Panzer Cyrillic alphabet variant.
Russian already uses a backwards R ["ya"] and N [long "e"].
There is no "S" character. They use "C" for the "S" sound, but that wouldn't be used in "Sharpie"
They have a character for our "sh" combination at the beginning of "Sharpie". Looks a bit like a Hebrew "Shin" or our capital sanserif "E" lying on its back.
I tried entering in the characters to show you, but either Mozilla is having an issue or this forum is rejecting them.
I'm going to try a "suggested" Russian transliteration of "Sharpie" as an image ...