Double-Barrel Poo Bag Holder

I got tired of running out of bags, so made a double-barrel holder.

*UPDATE - April 7, 2017*
The original lid design was quite flawed, and I ended up using a rubber band to keep it from falling off when bumped. The new design uses threaded lids, which work very well.

I found that the updated body renders with some manifold issues, so I used netfabb basic to fix them up. That's the "Repaired" STL. If your lid is too loose or two tight, try changing the thread_scale value on the lid.