Paint bottle shaker for Poly-Scale bottles

A simple 3D-printable paint bottle holder for the now-defunct Poly-Scale paint bottles. It attaches with a small clamp (also 3D-printable) to a jigsaw blade using two 4-40 screws and nuts. I know, some people like their paints stirred as opposed to shaken, oh well. Although the holder provides a snug fit, the rubber band on the photo is for 'insurance'. The small recess in the clamp part is for the jigsaw blade to slip into, as seen on the photo. Once the blade is in, tighten the nuts...and give