https://www.pcgamer.com/twitch-prime-subscribers-now-get-exclusive-fortnite-cosmetics-heroes/

Having upped its get-free-stuff-for-signing up game of late, Twitch Prime now welcomes Fortnite into its complimentary fold. 

In partnership with Epic Games, subscribers to Twitch's premium service will now receive free cosmetics for Fornite Battle Royale, new heroes for its Save the World counterpart, and exclusive Twitch chat emojis.