Designed in Inkscape, traced and converted to solids before extruding in OpenSCAD and slicing in PrusaSlicer.
Printed here at 85% scale X/Y with 100% Z at 0.25mm / 10% / PLA.
Be sure to keep the thickness if you re-scale, 1.5-2mm at least recommended to maintain structural integrity.
The author hasn't provided the model origin yet.