I love the whole "monorail kitteh" running gag:


more animals

It's like Catbus, only non-Totoro related.


****

And I love this XKCD (scroll down! There's a knitting-related joke!)

I will say the bit that made me laugh the most was the Rick Astley reference...

(Philosophical question: does it still count as a Rickroll if the subject is, in fact, Rick Astley?)