Calvin In Drawn Form refers to two of Calvin's alter egos. They appeared in a weekday strip and a Sunday strip respectively. Both alter egos were poorly rendered self-portraits made by Calvin in his spare time.
Weekday strip
The alter ego first appeared as a pencil drawing of Calvin in a single weekday strip. The drawing was a bean-shaped stump with a broken outline, wheel-shaped feet, no arms, misplaced facial features and what appeared to be an antenna. Calvin's mother thought the drawing was of some sort of helicopter.
Sunday strip
Calvin In Drawn Form appeared once more, this time drawn in crayon. Here, it was a thickly outlined, stocky humanoid with a garish color scheme, crossed eyes and a pig-like snout. Calvin attempted to fix his drawing by adding things or drawing over them, which ultimately gave his alter ego vomit-green skin, purple spots, fangs, horns and a goatee.