In an era when our economy is in flux, and many are revisiting their penchant for buying more stuff, conceptual artist Jonathon Keats offers another way: buy the opposite of stuff. His upcoming exhibit on The First Bank of Antimatter (BoingBoing blog here, and here's the exhibition site) suggests a mirror marketplace to reinvigorate our current one. Says he:

"Economic equilibrium is upset by our unbalanced pursuit of material wealth.... My plan is to offset materialism with modern science, by exploiting the economic potential of antimatter, which is the physical opposite of anything made with atoms, from luxury condos to private jets."

The exhibit creates a new form of currency, backed by antimatter stored in a vault. Sounds like a plan to me.