Curb is a media agency in the U.K. that specializes in using natural materials to build awareness for clients’ products and services. They’ve made “ads” out of cut turf, snow, and sand sculptures, among other healthy things. They’re masters of guerilla advertising — the latest example being their stenciled ads for a London aquarium. Because salt water evaporates more slowly than fresh water, the ads have a lifetime of about 20 minutes, leaving nothing behind but a light dusting of natural sea salt.

Sea Tagging