I found Nemo!
Demotivational poster / demotivator description: Delicious cake... I mean delicious sushi. Sushi is made from the fish Nemo. Nemo is main character from "Finding Nemo" movie and you should have been aware of that Nemo was a bad fish. That's why he deserved ending as a sushi :P Bon apetit - omnonom. Btw - I'm sure that in Japan this sushi would be extremely popular ;)
Demotivator related joke:
Q: Hear about the new sushi bar that caters exclusively to lawyers?
A: It's called, Sosumi.
I hope that Disney won't sue us for using it's brand - we can't afford lawyers :P