I make character sketches like these all the time, I guess it's about time I build up a few to have with me during events.
It's rare that anyone will find me at a comic event and far more rare that you'll find me at a comic convention but if you do I'll try to have these "ready made" sketches available for purcase with me.
Here we have Dream from Neil Gaiman's The Sandman.
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"There he goes. One of God’s own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live and too rare to die.”- Raoul Duke (“Fear & Loathing in Las Vegas”, 1998)