This one is a loose Malcolm in the Middle reference, but you don't need to have seen it to get the comic. I'll try and avoid using too many references in future but this worked too well to pass up.
Scene being referenced:
Hal: "Dewey, go easy on the orange juice. That stuff doesn't grow on trees - wait, it does. So why is it so damn expensive?"
I'm hoping to keep up a weekly comic thing because comics are great drawing practise. Especially when it comes to expressions as the characters face usually needs to change in almost every frame.
MLP:FIM is owned by Hasbro.