Lucky Star Bebop

This + this = this:

There's also EvaBebop.

"Motteke! Sailor Fuku" [GUNPLA Ver.]

"Motteke! Sailor Fuku" [Rockman Ver.]

First, (re)acquaint yourself with the intro to the show Lucky Star. Then watch this:

This also looks promising, even if I'm not completely sure what exactly it is.