This Plankton pattern (Spongebob Squarepants) is from LadyLuigi in craftster. He stands about 5 inches high, with pipe cleaners as antennae and arms. I totally love the smirk on his face.
Next, we have the pattern of Muno (Yo Gabba Gabba) from Soulmom, also from craftster.
And while we're in the subject of crocheted cartoon animals, check out this Bloo (Foster's Home for Imaginary Friends) from Kachoo who is from craftster too.