Click on the images to see them full-sized.
Escher frogs (61K), by Yoshiaki Araki, who has more pictures like this too.
Kermit with Jim Henson (21K). Sorry, this one doesn't get any bigger.
Kermit with banjo (26K).
Frog legs (91K)
Flies, from Gabe Martin's "The Borderline"
Kermit meets the Swedish Chef? (35K) From the Koormit page. (Hint: it's a Swedish singing group.)