Elswinkle

Elswinkle is the femslash ship between Periwinkle and Elsa from the Disney fandom.

Canon
As Elsa and Periwinkle are from different series, they have never met in canon.

Similarities and comparisons

 * Both are users of ice-related magic.
 * Wear blue colored clothing.
 * Have an non-magic sister that they are care about.
 * As they heal their sisters cold injures with love.
 * Want to keep themselves together, as well as wanting to keep each other safe.
 * Their sisters dressed for the cold, so they could stay warm in their winter covered "worlds".

Fanon
While the exact origins of the ship is a mystery, it could simply be due to both Disney characters being able to do ice related magic. Along with a few similarities and traits between them, and have on occasions been portrayed as one another by fans for a Frozen AU and a Disney Fairies AU.

Fandom
FAN FICTION
 * Elsa/Periwinkle on FanFiction.Net
 * Elsa/Periwinkle on FanFiction.Net

TUMBLR

Trivia

 * Because of the similar traits between the two and their sisters, some have cast Elsa as Periwinkle and vice versa. The same with their sisters, for when they are cast as "two" and the other together.