I know that some of you can't afford to spend $15+ a pop for eyeshadow, so here are some "knockoff lookalikes" of the high end shades, I actually own MAC and some drugstore brands so I can actually vouch that they are almost identical!
Especially the MILANI eyeshadows!
Eye Shadow Knockoffs# Bare Escentuals Cupcake Glimpse: Milani Illusion
# Bare Escentuals Queen Tiffany: Milani Java Bean
# Bare Escentuals Socialite glimmer: Milani Clover
# Benefit Lemon-aid: Jane Dream Cream
# Bobbi Brown Pale Pink: Clinique Pillowtalk Smudgesicle
# Cargo Nepal: Milani Flare
# Clinique Bronze Satin Shadow: Covergirl Tapestry Taupe
# Clinique Golden Lynx: Covergirl Glazed Ginger
# Clinique Silver Lining (pink): Jane It's A Girl, ULTA Love
# Clinique Strawberry Fudge (pink): Milani Illusion
# Dior GoldFusion: MAC Gorgeous Gold, L'oreal Enlightened Emerald
# Garden Botanika "Bronze" shadow: Jane Sungloss
# Lancome Un Taxi Mauve: Prestige UVA
# Lancome Riot: Jane Deeply Green
# Lancome Contrast: MAC Nocturnelle
# Lancome Golden Sun: Covergirl Burnished Gold
# Laura Mercier Cognac: Milani Spice
# Laura Mercier Whiskey: Prestige Sandalwood
# Lorac Serenity: NYX Sahara Ultrapearl
# L'Oreal HIP Saucy: Milani Sun Goddess/Milani Desert Sun, Prestige Melba, Milani Java Bean
# MAC Shadesticks: NYX Eyeshadow Wands
# MAC Amber Lights: Milani Sun Goddess, Milani Desert Sun, Prestige Melba, L'Oreal HIP Saucy
# MAC Aquadisiac: Jane Millionare
# MAC Atlas: ULTA Silk
# MAC Bamboo: Wild and Crazy Wild Guava
# MAC Banshee: Milani Spice
# MAC Beautiful Iris: ULTA Iris
# MAC Black Tied: Covergirl Shimmering Onyx, Milani Storm, Jane Clubbing
# MAC Blue Noir: Prestige in Ink
# MAC Brill: Wild & Crazy Bahama Water
# MAC Brule: Milani Almondine
# MAC Camel: Revlon Pro Bamboo
# MAC Coco: NYX Beanie
# MAC Cork: M Professinals Soft Brown Eyeshadow, Covergirl Swiss Chocolate
# MAC Cornflower: Physician's Formula Virtual Eyes Loose Shadow in Eye-Tech
# MAC Coquette: Almay Khaki Eye Gel
# MAC Creme de Violet: ULTA Iris
# MAC Crystal: L'Oreal Beauty Queen On-the-Loose
# MAC D'Bohemia: Wild and Crazy Crazy on You, ULTA Knit
# MAC Dazzleray Pigment: NYC Loose Sparkle Eye Dust in Champagne
# MAC Dark Soul pigment: Jane clubbing
# MAC Deep Truth: Loreal On the Loose in Night Fever
# MAC Dementhe: Milani Clover
# MAC Electra: Jane Hi Ho Silver
# MAC Electric Eel: Milani Atlantis
# MAC Embark: Jane Brownie Points, Flirt! Coconutty
# MAC Guacamole: Milani Limbo Lime
# MAC Goldmine: Prestige Golden Retriever
# MAC Gorgeous Gold: L'oreal's Enlightened Emerald Duo, Dior GoldFusion
# MAC Glare: Prestige Golden Sun, ULTA Silk
# MAC Hepcat: Prestige Blossom
# MAC Humid: Milani Clover, WnW Sensual Sage
# MAC Hypnotique: Prestige Saturn
# MAC Jest: Milani Peachy Peach, Maybelline Pink Sands, ULTA Bermuda Sand
# MAC Jewel Blue: Jane Eye Zing in Surfer Girl
# MAC Juxt: Prestige Wasabi, Milani Garden Mist, Jane Rain Forest, ULTA Mist, Jane Sage
# MAC Kicky Blue: L'Oreal Holographic Blue
# MAC Leisure Time: L'Oreal OTL in Flash Light
# MAC Little Madame: Milani Illusion
# MAC Lucky Green: Wild and Crazy Marquis
# MAC Medowland: L'Oreal Wear Infinite in Glistening Sea
# MAC Melody: Jane Millionare
# MAC Metamorph: Rimmel Hope
# MAC Midnight Blue: Jane Blue Jeans, Prestige Horizon
# MAC Mulch: Milani Java Bean, L'oreal HIP in Saucy
# MAC Naked Lunch: Wet n' Wild Fine Wink
# MAC Nocturnelle: Milani Shock, Lancome Contrast
# MAC Nylon: Milani Classic Beige, TooFaced Glamazon
# MAC Paradisco: Flirt! Feeling Hot
# MAC Parfait Amour: Milani Enchantment
# MAC Parrot: ULTA Deep Sea, L'oreal HIP in Showy
# MAC Perverted Pearl: Milani Silver Bullet
# MAC Pink Freeze: Prestige Ballet, Milani Taffy, Cover Girl Pink Chiffon
# MAC Pink Source: Milani Taffy
# MAC Pink Venus: Milani Taffy
# MAC Quarry: Prestige Sandalwood
# MAC Rose: Prestige in Flushed
# MAC Rose Pro: Jame Prom Queen
# MAC Sable: Milani Java Bean
# MAC Satin Taupe: Maybelline Silken Taupe, Rimmel Strength, ULTA Twilight
# MAC Shale: Milani Icy Plum
# MAC Shimmermoss: ULTA Luna
# MAC Silver: Milani in Mercury
# MAC Sketch: Milani Marooned
# MAC Shadowy Lady: Milani Marooned
# MAC Shroom: Jordana Beige, Jane Magic Mushroom, Wet 'n Wild Flirt Shimmer Stick
# MAC Soba: ULTA Toast
# MAC Sprout: Prestige Wasabi, Milani Garden Mist
# MAC Steamy: Milani Clover, ULTA Luna
# MAC Sumptuous Olive: Milani Antique Gold, ULTA Golden Olive
# MAC Sushi Flower: Prestige in Love
# MAC Swish: Prestige Love
# MAC Tilt: YSL Duo ???
# MAC Trax: Prestige Flushed, Flirt! Glamourazzi, Milani Desire
# MAC Unreally Blue: Milani Blue Jeans
# MAC Vanilla: Philosophy Serenity, Wild and Crazy Mist Over Me 3110, Milani Snow Frost
# MAC Vapor: Prestige Chilly
# MAC Vellum: M Professionals Opalescent White, Wild and Crazy Lily Song, Milani Moonlight, Max Factor Spotlight Sparkle
# MAC Vex: Max Factor Mint Matinee
# MAC Wedge: M Professionals Taupe
# MAC Woodwinked: Milani Golden Bronze
# NARS Ashes to Ashes: Maybelline Silken Taupe
# NARS Night Fairy: Prestige Uva, Hard Candy Star
# NARS Tibet: Ben Nye Pearl Shine eyeshadow
# Philosophy Prosperity: Urban Decay Floormat
# Shu ME 945: Caboodles Smooth
# Shu ME945: Majolica Majorca SV821
# Shu P Brown 76: Flirt Oh Please!
# Stila Barefoot Contessa: Prestige Spark, Jane Magic Mushroom
# Stila Go Lightly: Milani Golden Bronze
# Stila Grace: Ulta Plum Smoke
# Stila Heath: Prestige Sandalwood
# Stila Holly Golightly: Milani Golden Bronze, Jane Magical Mushroom
# Stila Jezebel: Garden Botanika "Mimosa"
# Stila Kitten: Wet n Wild Fine Wink, CoverGirl Champagne Eye Enhansers shadow, Sally Girl Silver Lining, ULTA Bermuda Sand
# Stila Pigalle: ULTA Chianti
# Stila Ray: Milani Sun Goddess, Milani Desert Sun, Prestige Melba
# Stila Sun: Prestige Champagne
# Stila Twig: Milani Spice
# Tarte Real McCoy: mark. minx
# Trucco C-Note: Milani Clover
# Too Faced Fantasy Island Duo (Blue): ULTA Luna
# ULTA Love: Jane It's A Girl
# Urban Decay Acid Rain: Prestige Wasabi, Milani Garden Mist
# Urban Decay Asphyxia: MAC Parfait Amour, Milani Enchantment
# Urban Decay Chains: Milani Antique Gold
# Urban Decay Face Case: Fira Face Case, Wet Seal Face Case
# Urban Decay Green Goddess: ULTA Mist
# Urban Decay Grifter: Prestige Uva
# Urban Decay Hotpants: Prestige Love
# Urban Decay Lounge: Physician's Formula Down To Earth
# Urban Decay Midnight Cowboy: Milani Sheer Sand, Sephora Old Rose; Cover Girl Bedazzled Biscotti
# Urban Decay Midnight Cowgirl: Prestige in Glisten
# Urban Decay Mildew: Prestige Iguana
# Urban Decay Oilslick: Covergirl Shimmering Onyx, Milani Storm, Jane Clubbing, Presige Ink
# Urban Decay Polyester Bride: Prestige in Glisten
# Urban Decay Roach: Max Factor Sable
# Urban Decay Roadstripe: Milani Moonlight
# Urban Decay Rust: Prestige in Melba
# Urban Decay Shattered: Naturistics in Azure
# Urban Decay X: Ulta Sunlight, Ulta Sunburst, MAC in Jest