Warframe players, and it involves the players’ own pets.
“Would you like to see your favorite fluffball in Warframe? Introducing the Tenno’s Best Friend Contest! Share a picture of your cat or dog that incorporates Warframe, and we’ll bring one pretty kitty and one good boy to life in-game with a Kavat and Kubrow Skin inspired by your pet! These Skins will be available for sale in the Market. so everyone can use your immortalized best friend!”
All you’ve got to do is share your very good boy or girl on social media or in the official thread (and follow all the rules!). Six players will be walking away with varying stacks of platinum, but only the top two – one for a doggie and one for a kitty – will see their critters immortalized inside the game.
Source: Official site. Thanks, Sophiskiai!