Frosensteel

Frosensteel is the Poly ship between Ruby Rose, Penny Polendina and Weiss Schnee from the RWBY fandom.

Canon
Penny first met Ruby and Weiss at the same time in Volume 1. Weiss was running ahead of her teammates before crashing into Penny. The three of them officially met then with Penny and Ruby becomes friends right away and Weiss and Penny seemingly having become friends later.

In volumes 2 and 3 Weiss, and Penny do not interact much though Penny and Ruby do. Weiss and Ruby are both there when they run into Penny again in Volume 2 Episode, after her disappearance at the end of volume 1. Weiss and Ruby both reacted to Penny's first death in volume 3.

The trio are reunited in the first episode of volume 7. Ruby and Weiss were both relieved to see that Penny was alive.

Penny is comforted by Ruby and Weiss in the air ship during the end of the finale episode of volume 7, The Enemy of Trust. In season 8 Ruby, Weiss, and Whitley carry Penny inside. After becoming human during that same season Penny hugs Ruby first and then immediately hugs Weiss.

Fanon
Frosensteel hasn't really been a popular ship in the RWBY fandom, hardly anyone liked the ship nor knew about it. But throughout Volume 7, the ship grew in popularity once they were seen comforting each other in Volume 7. It has a decent amount of fans.

Some fans even ship it because both Nuts and Dolts and White Rose are somewhat rival ships in certain parts of the RWBY fandom, so they decided to make Penny, Ruby and Weiss fall in love with each other.

Fandom
FAN FICTION

TUMBLR

Trivia

 * The ship name is due to the fact that Weiss is associated with snow and the cold, Ruby's last name is Rose, and that Penny used to have a robot body.

Variations

 * Nuts and Dolts — the ship between Ruby Rose and Penny Polendina
 * PennyWeiss — the ship between Penny Polendina and Weiss Schnee
 * Short and Sweet — the ship between Penny Polendina, Ruby Rose, Weiss Schnee and Neopolitan
 * Ruby's Harem — the ship between Penny Polendina, Ruby Rose, Weiss Schnee, Oscar Pine and Jaune Arc
 * White Rose — the ship between Ruby Rose and Weiss Schnee
 * Winter Greenhouse — the ship between Penny Polendina, Ruby Rose, Weiss Schnee, Blake Belladonna, and Nora Valkyrie