#1 Does that pizza have corn on it? WTF?

#24 Yep, thems spends muchly.

#1 It works better if you hold both sides of the pen to roll the CD.

#6 Anyone who took a basic science course should know how to do that.

#24 He's also a better fisherman than most.

#32 They work!

#1 Cute, but this would never work in real life. You might be able to cut sheet cake or Jello with this device, but you'd break the pen before you did any kind of damage at all to a substantial pizza crust. Additionally, the CD just isn't sharp enough. Anyone who has had to roll a real pizza cutter back and forth a couple of times to actually make a single cut in a pizza knows this.