The following is a list of minor items appearing on Rock, Paper, Scissors.
Snowboard rocket engines[]

When Rock, Paper, and Scissors are going down a snowy hill during the opening title sequence, Scissors' snowboard inexplicably gains what appear to be rocket engines, which mysteriously vanish immediately after they are used.
Pogo sticks[]
In the Rat Bros scene of "Pogo Sticks", Logan, Brody, Brogan and Dirf do a pogo stick party.
Paper's robot model[]
Near the beginning of "Prank War", Paper is seen working on a model of a robot, which he would later use as the design basis for a large vehicle.
Prank War crown[]
TBA
Pull-string Paper doll[]
TBA