P.E.N.C.I.L.

The P.E.N.C.I.L., or Panicked Evil Noobish Cannon-shaped Invincibility Lover, is a blimp that looks like a large, yellow, 0/0 Bomb Tower with a Lead Bloon clogging it. It only takes 100 hits to destroy and releases an Eraser Bloon and a Lead Bloon. It also has an ability:

Draw Bloons: Spawns 30 lead bloons and 5 Ceramics.

It only appears in the Flipbook Special Mission.