Another National Forest has an American Flag hanging upside down from it following the U.S. Forest Service's decision to ...

A man used a flag as a drape for a Trump tribute sculpture—then crumpled it and tossed it on a chair. Trump said nothing.

Uses ThreeJS/WebGL for 3D rendering and either d3-force-3d or ngraph for the underlying physics engine. See also the 2D canvas version, VR version and AR version. And check out the React bindings.