Made this to hold hexagon coasters. Add felt feet underneath for extra class. Scale to size.

No supports. Default infill worked fine. I'm printing on a K1 so maybe the speed helped but there's almost no bridging across the cutout. YMMV. I might make one with smoother curves for those unable to print as default so feel free to let me know in the comments.

Face-to-face the hexagon coaster measures ~4in or 103mm. 65mm high.