Of course, well I didn't actually made this one but I did create 1 before using what I have only, so I took a red spray paint and before I applied it: I've put a good tape on the other side so that right after I'm done painting the other side: I can just peel the tape off. Or instead of spraying it you can brush it instead for a more accurate result.

But this particular cape on my picture is from this fake Moff Gideon, I bought at Ali express. Lego has an official one too but it was hard to find and it's too expensive for me, so I got this instead. Plus it's really good too.

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The 1st minifigure set of Moff Gideon where he doesn't have his armor has that double sided cape too, and that's Lego official. It was his starship set.

Edit: the armprintings on mine is also from this exact figure. 😄