Lewd magazines! The challenge itself being lewd is up to you, you can go ‘tasteful’ if you prefer, which is why this post itself isn’t marked NSFW.
On the other hand you can absolutely go as immoral as magazines get, with their barely this and fetish thats. As long as it’s MLP related! Playponies and Muzzlers and Obscene Abyssinia and Mares With Flares who knows what 😛
You’ve got 45 minutes to create followed by 15 minutes to submit! Have fun~