Jim Phillips drew all of the Santa Cruz art and lettering by hand back in the day before modern design programs. They screenprinted stickers and boards using rubylith separating each color by hand rather than using computer generated film.

(Stickers overview) http://www.jimphillips.com/skate/archives/stckers/stickers.htm
(Santa Cruz logo stickers) http://www.jimphillips.com/skate/archives/stckers/2stiksc.gif