Farnsworth: Good news, Mom. I've invented a new children's toy. I call it "Q.T. McWhiskers". When you pet it, it shoots rainbows from its eyes.
Mom: Wonderful, Hubie. We'll build them 8-feet tall and replace the rainbow with a neutron laser. We'll make billions on the intergalactic arms market!
Farnsworth: But things 8-feet tall aren't cute! That's why my Colossal Tammy Tinkle Doll was such a failure.