Most obscure cartoon that you like

Just going to bring this up because I finally found it. I had a recollection of an edutainment cartoon featuring a cartoon mouse that I saw sometime in the 1970s but I was never able to figure out what it was. I finally found it, it's Max the 2000-Year-Old Mouse. I even remembered the theme music. I guess it didn't turn up because he's not time travelling, he's just 2000 years old.

I just recently discovered Little Dogs on the Prairie. Actually quite good for a religious cartoon (although that's a bit of a stretch, as religious stuff is just barely mentioned. Heck, you could remove all the religious references and nothing would change about the plots, story, or characters)