For Hal and Jeph:
d20 Hanna-barbera is a slight misnomer.
Late last year, One of our DM's (who comes up with concepts that make Weird Al Yankovic look perfectly sane) came up with a premise: What if most of the favored cartoon characters of his youth (The Herculoids, Thundercats, He-man, Pac-man, the Smurfs, Birdman, etc.) all existed in the same continuity and world? Our adventuring party consisted of
2 Paxons (Pac-men; think Douglas Adams' little green dude, but yellow and with eyes)
1 Shark-man (Nyuk, Nyuk, Nyuk)
1 Avian (Biiiiiiiiirrd-mannnnn!)
1 Smurf (veeery tiny, but one heck of an enchanter)
1 Thunderan (playing a guardian, with a sword that improved with power as he did)
And the fun was non-stop. My Paxon Cleric, with a small backet strapped to my body) served as a mobile platform for the smurf-mage, who served offensively for me, while I used my spells to keep him from harm.
Believe it or not, we even worked for Skeletor and Evil Lynn in a mercenary capacity for a while - one of our most famous jobs was to take down Trapjaw, who had mutinied against Skeletor and had stolen a skeletal version of the U.S.S. Nimitz from him.
Some of the plots started to get a little weird after a while, so we stopped playing. But it was fun while it lasted! I even still have the Paper-counter I created, that had a picture of my paxon carrying around the smurf in this little basket (think of an air balloon, and you'll get the picture.)