LittleBigPlanet is now £6.25 on PS Vita, and a game that every Vita owner should seriously consider owning.
"LittleBigPlanet Vita is like an enormous pile of Meccano; all potential and promise. Don't be afraid. Get involved and play with it." - LittleBigPlanet Vita Review
There are a couple of caveats with this deal, though (don't worry, the seller has incredibly high feedback). You'll have to wait until the PSN download code is posted to you, and then you'll have to download it, so you'll need some space on your Vita memory card. Also, bear in mind that LittleBigPlanet Vita is in the 10-game PS Vita Mega Pack, which occasionally gets a screaming deal.