I've had a couple of this style of plastic clip crack. Wrapping it in thread and then applying super glue seems to work pretty well. I also tried wrapping with fishing line, but it came undone pretty quickly. Just wanted to share the tip! Now if only I had a fix for when the prongs on the other half break off.
Yeah the mobile site has issues, but making this with sheet metal would be really hard anyway. You send them flat drawings with optional bend lines and they send it back, optionally they will bend it for would within very specific rules/guidelines.
Metal 3D prints would make way more sense shapeways I know can make great stainless steel prints, but it’s probably gonna cost more than a dozen plastic prints.