So, I've been playing around with designs at Thingiverse.com
It's pretty easy to add a new design, and include both the JSCAD design (*.js file) and example STL file. In addition, a link can be provided in the description that loads the JSCAD design via the JSCAD website.
Try it out... I converted one of the most popular designs to JSCAD V2; Parametric Butt Hinge.