Sleek i-Divine Palette in Au Natural (link)
I'm sure everyone has heard of Sleek and their brilliant eyeshadow palettes. They are great quality, with great pigmentation, blendablity and lasting power. The packaging is great. It's sturdy with a nice big mirror for travel and on the go touch ups. They are sneaking up in price but if you are on the look out for a brilliant neutral palette for under £10 this "Au Natural" palette from Sleek is worth the investment.
Beauty UK Eyeshadow Palette in No4 Earth Child (link)
This is a palette and brand that if often overlooked in my opinion. These little palettes aren't going to beat out MAC or Urban Decay but they are great value for money at only £3.99 for 8 shadows, and come in a nice range of colours. Earth Child is a great selection of neutrals with hints of khaki for those who want something other than brown.
B.Complete Eyeshadow Palette in 132 Glisten (link)
B. is quite a new brand to Superdurg, and is brilliant. I have quite a few reviews of the brand and I love nearly everything I've tried from them. The eyeshadows are great quality with nice pigmentation, good blendability and long wear. Glisten is a great group of 4 shadows that complement each other well and create a nice neutral look.
MUA Professional Palette in Undressed (link)
Everyone and their dog have given this and it's follow up counterpart a go. Undressed, and Undressed Me Too are only £4 each and contain 12 eyeshadows each that are very close dupes for the Urban Decay Naked and Naked 2 Palettes. They are great quality for the price, and are great for almost any occasion.