I have been a long time subscriber to Dave Kellet's daily emails filled with comic strip goodness. He writes and draws the comic "Sheldon" about a boy genius, and his gramps, and his talking duck. It is like a little gift in my inbox every morning. A while ago he posted this comic:
here for $18.25+shipping. There were several days of knitting jokes so be sure to check them out at www.sheldoncomics.com the knitting specific ones start here.