Skrall Army: $13 each

Government Robot Technology: $3,000,000

Making your army of Skrall come to life and invade your school because your Pre Algebra teacher gave you detention: Priceless

The only thing that's priceless is Michael Phelps.

Actually, I came up with a pretty good one the other day when something happened at school, but it's a pity I forgot it, otherwise I'd totally post it.

Your Honor,

Emperor Kraggh