So I discovered through Crimson's Blog you can enter banners to GS and if they are accepted they become the Gamespace banner for said game.  Here are the ones I've entered so far, I hope some get accepted!

TombRaider - Here

TombRaider Chronicles - Here

TombRaider Angel of Darkness -Here

Resident Evil Outbreak File #2 - Here

Resident Evil Outbreak File #2 (2) - Here