Build-a-Piken is a small Mogadorian chemistry-like play set for young Natural-Born Children. It introduces them to MogPro at a young age. When Adam wakes up from the experiment where he witnessed One's memories, he turns over and sees Kelly, his little true-born sister playing. She takes an earthworm and slices down the middle of its belly with a tool. She then squirts a liquid into the gash, making the worm grow spider-like legs; it tries a few steps, then falls over and bursts into ash. Kelly then proceeds to wipe up the ash and try again with another worm, making Adam realize how little his people value life. Kelly then sees Adam and runs to get their mother. This play set seems to demonstrate how Pikens are manually/automatically made.