Funnyman Russell Brand is asking fans to haul their unwanted clothing and gadgets to a bartering day - for a "social experiment" about consumerism.
The Forgetting Sarah Marshall star will serve as vendor at a pop-up shop in Los Angeles, where visitors will swap goods instead of buying them.
A post on Brand's website explains, "Many of us are guilty of buying things we don't necessarily need. With this in mind the shop offers customers an opportunity to put those unwanted items to good use by offering them in exchange for something they actually need.
"The idea is to raise debate about the scale of consumer culture and to promote the re-use of products in a surplus society. A social experiment, it aims to examine shopping habits whilst providing an opportunity for Russell to speak directly with the public and gauge opinion."
The one-day event on 27 May (10) at the Beverley Centre in L.A. will be filmed as part of a documentary Brand is planning about the pursuit of happiness.