If you just want to test-drive, there are more-sophisticated alternatives than press-ons. Temptu (26 W. 17th St., nr. Fifth Ave., Ste. 503; 212-675-4000), which created flawless fakes for De Niro in Cape Fear, developed a new paint this summer that lasts up to ten days, with careful showering. You can design your own and Temptu’s artists will create and apply the transfer, or choose a design from their portfolio (from $9.50).