Double spool holder  

Double spool holder

As MANY people do when they first get a printer, I know I want/need a fancy spool holder.  As you do.  I knocked up a triangle type design initially, but after doing more research I'm leaning toward something like this:

Imagine two of those knocked up to attach to the stock Prusa filament holder post.

I could replicate the connection at the T and have two rolling spindle spuds sticking out instead of the static sticks.

Which brings me to my question.  Does anyone have a STP or STEP model for the stock Prusa double holder?  I know it's injection molded so it likely won't be a printable part model they provide.  As luck would have it, I design parts and their molds for an injection molding company so I could possibly mold the spud.  Of course I'd have to have other people interested in the idea before I made a mold, but that's getting ahead of myself.  I could reverse engineer the parts when they get here (kit is ordered), but I was hoping to get a jump on the design work.