The Windmill Floss emote is an Rare Fortnite emote. Windmill Floss was available via the Item Shop for 500 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Windmill Floss Emote Details
Take it all the way around.
Fortnite Windmill Floss Emote PNG Images
Here is the PNG images of Windmill Floss below!