For more TMNT sightings, go to Tasha's Turtle Spotting!

From "Mother Goose and Grimm". Mike Peters's parody, "Middleaged Mutant Ninja Turtles".
Translation: Leo: "Cowabunga! Here's an add for self-powered lawnmowers!"
                    Raph: "Hey, dude! Who's been eating my Nyco-powder?"

From "Luann". Luann's dad stumbles over a rack of TMNT stuff on their shopping round.
Translation: Dad:  "You kids today sure read alot of funny stuff...'Teenage Mutant Hero Turtles'?"
                    Luann:  "What did you use to read, daddy?"

From "Sonic The Hedgehog". Oops, looks like our boys made a wrong turn somewhere in the sewer...
Translation:  Leo: "We're in the wrong sewer, guys!"
                     Mike: "Or in the wrong comic!"

There are a lot of TMNT sightings in Scott McCloud's analytic book "Understanding Comics".
There are even some pictures/references to Cerebus the Aardvark, Flaming Carrot and Usagi Yojimbo
whom TMNT have co-starred with several times.