Have to get off computer but I found this and wanted to share really quick:)

*Nothing on this list has been tested by me. If you find something that doesn’t match in the list, let me know.

MAC Satin Taupe eyeshadow = Rimmel All Over Pencil in Strength
MAC Sumptuous Olive eyeshadow = Milani Antiqued Gold eyeshadow
MAC Shroom eyeshadow = Jordana in Beige eyeshadow

And here are some more knockoffs that I know of:

*Blush
NARS Orgasm blush = Milani Luminous, Cover Girl Rose Silk Cheeker, Mark Afterglo, Loreal’s LE Front Page Peach
NARS Sin blush = Milani Temptation
Nars Deep Throat = Rimmel Apricot Blush
NARS Antibes Multiple = Wet ‘n Wild #721 Scandalous
NARS Copacabana Multiple = Wet ‘n Wild #724 Flirt
NARS Maldives Multiple = Wet ‘n Wild Just Peachy
NARS Portofino Multiple = Wet ‘n Wild #722 Coy
NARS South Beach Multiple = Wet ‘n Wild Brazen Babe

*Eyeshadows
MAC Bamboo = Wild and Crazy Wild Guava
MAC Brill = Wild & Crazy Bahama Water
MAC Dark Soul pigment = Jane Clubbing
MAC Gorgeous Gold = Prestige Glitz C-157
MAC Juxt = Jane Rain Forest
MAC Lucky Green = Wet n’ Wild Marquis
MAC Naked Lunch = Wet n’ Wild Fine Wink
MAC Paradisco = Flirt! Feeling Hot
MAC Trax = Flirt! Glamourazzi
MAC Vellium = Wild and Crazy Lily Song
MAC Amber Lights = Milani Sun Goddess
MAC Black Tied = Jane Clubbing = Milani Storm
MAC Coppering = Milani Flare
MAC Dementhe, Steamy, Humid = Milani Clover
MAC Electric Eel = Milani Atlantis
MAC Guacamole = Milani Limbo Lime
MAC Jest = Milani Peachy Peach
MAC Juxt = Milani Garden Mist (juxt is lighter and yellower)
MAC Little Madame = Milani Illusion
MAC Mulch, Sable = Milani Java Bean
MAC Parfait Amour = Milani Enchantment
MAC Perverted Pearl = Milani Silver Bullet
MAC Pink Freeze = Milani Taffy
MAC Shale = Milani Icy Plum
MAC Silver Pigment = Milani Mercury
MAC Sketch = Milani Marooned
MAC Vanilla = Milani Snow Frost
MAC Vellum = Milani Moonlight
MAC Woodwinked = Milani Golden Bronze
Shu Uemura ME 945 = Caboodles Smooth
Shu Uemura P Brown 76 = Flirt Oh Please!
Stila Barefoot Contessa = Prestige Spark
Stila GoLightly = Jane Magical Mushroom eye shadow (discontinued), Milani Golden Bronze
Stila Grace = Ulta Plum Smoke
Stila Jade = Sally Girl China Doll (discontinued)
Stila Kitten = Wet n Wild Fine Wink, CoverGirl Champagne Eye Enhansers shadow, Sally Girl Silver Lining
Stila Sun = Prestige Champagne
Stila Twig = Milani Spice
Urban Decay Acid Rain = Prestige Wasabi
Urban Decay Asphyxia= Milani Enchantment
Urban Decay Midnight Cowboy = Milani Sheer Sand
Urban Decay Mildew = Prestige Iguana
Urban Decay X = Ulta Sunlight

*Lipsticks/Lipglosses
Chanel Blizzard Glossimer = Wet n’ Wild Bronzeberry Gloss
Chanel Giggle Glossimer = Neutragena Chic gloss
Chanel Twinkle Glossimer = Prestige Alloy Vinylwear
Chanel Nude Liner = Max Factor Liner in Nude, Wet n’ Wild #666
Clinique Black Honey Almost Lipstick = Maybelline Drippin Honey Wet Shine Lipstick
Lancome Simmer Juicy Tube= L’Oreal Strawberry Smoothie ColourJuice, L’Oreal Butterscotch Drop ColourJuice
MAC Dainty Cake Lipstick = NYC Firefly #306b
MAC High Tea Lipstick = Rimmel Airy Fairy, Milani Sheer Lipstick in Amaterro
MAC Lovechild Lipglass = Rimmel Snog Lipgloss
MAC Love Nectar Lusterglass= Milani Coral Shimmer Lipgloss
MAC Lust Lipglass= L’Oreal ColuorJuice in Passionfruit Squeeze
MAC Oh Baby Lipglass = Milani Serendipity Gloss
MAC Prrr Lipglass = L’Oreal ColourJuice in Mai Tai
MAC Plum Liner = Revlon Colorstay Plum liner
MAC Sequin Lipstick = Almay Sequin One Coat Lipstick
MAC Spice Liner = Wet n’ Wild #666 or #712 Liner
NARS Orgasm Lipgloss = NYC Sungold Lipgloss, Mary Kate and Ashley Truly Lipgloss
NARS Pillow Talk Lipgloss = Rimmel Vinyl Lip Star in Be A Star
NARS Turkish Delight Lipgloss = Neutrogena MoistureShine in Groove
Scott Barnes Flossy Glossy in Meow = Neutrogena Groove Moistureshine
Stila Apricot Lipglaze =Prestige Fuzzy Navel Jet Stream Gloss
Stila Jane Lipstick = Rimmel Birthday Suit Lipstick