I had the idea to remix Sven's "last filament pidgeon" when I was joking with a friend about the idea of a messenger pigeon. I added a dovetail cut so the top and bottom can easily slide apart, then I hollowed out a small space in the lower half to store something like a small roll of paper. I also increased the scale and infill during the process, as well as added ironing for a smoother product. It's a far reach from Sven's Last filament" concept, but the design was too good!