Ski Bazaar : an anual second hand market for skis, snowboards, shoes and other sports equipment, organized by the Ski Club of Onex.
Do you want to buy ski equipment? 

Saturday, November 3 from 9am - 2pm Salle Communale Onex 133 Route de Chancy, 1213 Onex

(in French) http://www.skiclubonex.ch/current/bazar/index.html