BWAH! And look what I inadvertently stumbled upon while trying to find more info on a Hello Kitty regional plushie:

Kappa No Kaikata

(Gojyo: Wha...? A series on breeding kappas...but it's a comedy? WHERE ARE THE HOT BABES, DAMNIT?)

There's an unofficial English page for the anime here, and fansubs of the whole series are on Youtube here -- each episode is about three minutes long so it's a pretty quick view... XD