Whether you're a budding makeup artist or just building up your collection of eyeshadow shades, now's a good time to check out Coastal Scents Hot Pots! These 26mm shadows are exactly the size of MAC refills, come in a big selection of shades and cost $1.99 each.
Plus, they usually give you a free 12-pan palette if you buy 12 pieces of eye shadows.
The quality has been fair-to-good for me so far, with the stars being all the metallics, though a few of the matte shades I got had lower color-payoff than higher-end brands.
P.S. Coastal Scents ships internationally.