Modern Living: Portable World

For the adolescent of any age who has everything, there is a gasoline-powered pogo stick. For one who worries about the air around him, there is a stainless-steel belt that monitors pollution. For the woman who likes jewelry and is uncertain where she will be sleeping next, there is the "wild oats sowing kit"-a silver and brass pendant containing a Dialpak of contraceptive pills. For those bothered by walking in cold places, there are woolen socks heated by a battery.

On the sound theory that humanity craves mobility, the Museum of Contemporary Crafts in Manhattan is staging a show called "Portable World."...