Sula Paint & Peel Duos in Azure and Watermelon, $9, available at Sulabeauty—For the ultimate in quick-change options, try Sula's Paint & Peel Duos. The water-based polish doesn't smell and literally peels off—no remover necessary.
Nubar 2010, $7.49, available at Bynubar—Switch it up instantly by adding an otherworldly, iridescent effect to any shade with Nubar's sheer 2010 polish with reflective flakes. OPI Black Shatter, $9, available in stores in January—Paint this topcoat over any base color, and the polish will quickly dry in sections, creating a shattered effect that almost looks like lizard skin.
Orly Plastix Collection in Viridian Vinyl, Purple Pleather, Old School Orange, and Retro Red, $7.50 each, visit Orlybeauty.com for locations—One second you want matte, the next, shine. Why not go for both? Orly's Plastix collection creates a pleather-like finish that gives a rubbery, latexy look that fits in between full-on shine and flat-out matte.