INKTOBER 2025 Day #21: BLAST. A little homage to one of my heroes. #billwatterson #calvinandhobbes #spacemanspiff #spacemonkeyspiff #blast #inktober #inktober2025 #ink #penandink #art #drawing #illustration #pmd #plungermonkey #plungermonkeydynamo #monkey #tobygray #tobysbrain #comics