The scroll case may find use whenever one needs to transport a short missive in a dignified, weather-resistant container.
Read about how I used one of these to 3d print a time capsule: http://zheng3.com/2013/10/18/home-is-where-the-art-is-part-ii/ during the repainting of Casa de Zheng.
Use a medium length of sturdy ribbon to fasten the scroll case snugly between a raven's wings, with an X-harness across the bird's keel.
Can also hold a small quantity of iocaine powder.
Zheng3 Scroll Case
Seej patient zero. Barbie Armor Designer, artist, worst programmer ever. Mostly illiterate, but has minimal competence in spoken Mandarin. Not real clear on Ohm's law.