Rock, Scissors, and Paper, the plumbers are lumber plums from Pajama Sam 3: You Are What You Eat from Your Head to Your Feet.
Pajama Sam 3: You Are What You Eat from Your Head to Your FeetEdit
The plumbers appear in all versions of the storyline, but they are only important in the Syllabus the Sage storyline, Prize Booth storyline, and the Caramel storyline.
The plumbers appear identical save for their size and the logo on their shirts.
Paper is the smallest and has a capital P on his shirt. He is the only one not to wear a plunger (If Sam asks why, Paper explains he lost it while skiing a day before however he doesn't consider it a major loss since he mostly handles the paperwork).
Scissors is in bigger than Paper but smaller than Rock and has a capital S on his shirt. He is the only one with a plunger on his head in all versions of the storyline.
Rock is the largest and has a capital R on his shirt. He has a plunger on his head in all versions of the storyline except the Caramel Pit storyline (until after Sam asks to trade his plunger for the super plunger Rock was using to unclog the sink)