Nickel is a round coin-shaped character with two sides - heads and tails. His body, including his rims, is shiny silver. His face appears on the heads side, and his legs are at the bottom.

The sarcasm spasm of II

Fan is a red Chinese foldable paper fan. His body is shaped like an upside-down triangle with two yellow sticks at either side. The red paper makes several folds on his body, causing triangular bumps at the top. At his bottom the red paper twists.

Only the biggest fan

Yin-Yang is an amalgamation of two characters: Yin and Yang. The two halves have vastly different personalities that contradict each other. They share one body and are in constant disputes, even over simple tasks, such as what direction to walk or what to drink.

Yin, the white half, is good-hearted, kind, honorable, and rational, whose intent is to balance out Yang, the black half, who is massively profane, malicious, and immoral. 

The quarrel of II

Paintbrush the hothead, and Lightbulb the clumsy leader of "The Bright Lights".

Paintbrush is nonbinary. (Prounouns: They/Them)

Lightbulb is a trans lesbian. (Pronouns: She/Her)

They both love their pet crab, Baxter.