I've been thinking about trying to make a wireframe heart wall hanging but wanted it 3d rather than just 2d.  My CAD skills were found seriously wanting so it's real rough, but I wanted to at least see how it turned out. Done in freecad (files posted here if you want to see some really poor skills). Also don't judge the program for my lack of knowledge. :)

It's around 100mm square but I was going to print scaled 300% on my ender 5 plus. When I figure out proper sweeps in FC then I hope to make a revision, but maybe this will suffice.

Enjoy!