One half of the design duo Caitlin McCarthy and Caitlin Murray, of Caitlin + Caitlin Design Co., wears Flash Tattoos as eye-catching midi rings. (We're equally obsessed with her foil nail decals.)

Image: @caitlinandcaitlin

Alessandra Ambrosio's feather Flash Tattoos had everyone buzzing at this year's Coachella festival. The temporary tats (from the Sofia collection) are perfectly in sync with the model's signature boho style.

Flash Tattoos were originally designed to resemble jewelry. These wraparound Flash Tattoos are perfect for creating glimmering sets of faux arm candy. Plus, technically you're shopping for charity -- five percent of the proceeds from the Goldfish Kiss H2O collection go toward Waves For Water, an organization that provides clean drinking water in impoverished communities. Purchase, justified.

Miami Swim Week is the place to be if you want to infuse some fresh ideas into your beauty routine. (Check out all our favorite looks from this year's shows here.) L *Space by Monica Wise sent models down the runway with these mermaid-like metallic temporary tattoos.

A delicate design down your spine is sure to turn heads as you walk along the beach. Jill Wallace from Little Black Boots serves as our style inspiration. Her tattoos are part of the Child of Wild collection from Flash Tattoos.