The laser-cut acrylic pieces that I planned to attach on the back of the small PewPew Standalone boards just arrived, and I have to say I didn't anticipate how they came out:
Well, at least the shape is correct... but I didn't think the scale will be wrong. Especially since I actually printed the PDF and made a wooden model based on that, to make sure everything is good. Oh well, I guess that's it for ordering laser-cutting from China. I will have to do it myself.