Cloudycorn is an Uncommon Fortnite Spray. This cosmetic has been leaked, and the spray will hopefully be available to purchase in the near future! Cloudycorn was first added to the game in Fortnite Chapter 2 Season 2.
I'm not sure how you obtain this spray, but the source says it's from the Battle Pass. If you know how to get it, let me know in the comments!
How-to Get the Cloudycorn Spray
Cloudycorn was leaked or datamined, which means we don't know for sure how it will be released. Most cosmetics that are leaked will be released within 30 - 60 days of their discovery.