Oh this is fun! A Transformers fan connected me and asked me to sign his copy of The AllSpark Almanac for him via the US Postal Service. He asked if I could include a sketch of my interpretation of Unicron. So I sent him this:

unicron_sketch_by_billforster-d2yr9gg

He then posted this great video of him receiving the sketch. Thanks Zeltrax Millenium for the super vid! (Transformers folk always have the best names!)