I tend to stay away from makeup kits. Generally I find I only use a couple of the shades in the kit regularly and the rest go to waste, so they're not an especially savvy investment. However, for the sheer cuteness factor alone I may have to get this:
Available in three sets: Make-Out Girl (pictured), Absolute Girl and Rude Girl, each kit contains five eyeshadows, three lip glosses, concealer and cream blush. It looks like the sort of thing you'd buy for a pre-teen girl just starting out with make-up, but I so want it for myself! £5.00 from Eyeko Beauty.