Favorite makeup discontinued? Lisa Koebbe Bevan, owner of Believe Beauty Lounge (395 Manville Rd, Pleasantville 914-747-0778), has the solution: custom makeup. In about 10 minutes, Bevan can whip up a perfect clone to your favorite lipstick, foundation, or nail polish (prices range from $14 to $52). Believe is the only beauty salon in Westchester to carry the Giella Custom Blend Cosmetics line; all the pigments, waxes, and extra goodies (sunblock, moisturizers, etc.) can be mixed on the spot for instant gratification! You can even name your special blends; what could be more personal?