One of my biggest challenges for my traveling makeup bag is finding A) brushes that are the right size to fit into a makeup bag that can be stuffed into my purse B) fitting the 6-10 brushes I need in, and still having room for makeup. ---Which is why I was SO excited when I saw these amazing brushes from ME! The eye makeup brushes are DOUBLE SIDED!! Which means, when you pack three brushes you are really getting six! This is an absolute must-have for any Beauty Snob… and for a limited time they are offering free shipping =) Mine came yesterday and I can’t stop playing with them!
Eye shadow brush: Fine Line -$29
Eye shadow brush: Crease -$29
Eye shadow brush: Shadow -$29
the brushes are so cute.
anyways, speaking of double sided brushes, i reckon there's a set from Posh brush that consists of mini double sided brushes which should also full fill your requirements.
http://www.poshbrushes.com/86745.html
i've ordered one of this set but it doesn't reach me yet so i do not know about the quality. but the price is cheap!