http://ellenmilliongraphics.com/sketchfest/
I have done two very rough sketches, I hope to have time for more later, but I hear dangerous silence that I have to go investigate now...
ETA: I have good instincts. That... was distinctly unpleasant, and involved changing a diaper in the shower and following that by scrubbing the shower with bleach. The pants were thrown away.
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