On our web site, we have an area called "The Exchange." In this area, you can post items you have for sale, for free, or your lost and found items. By default, items will stay out in the exchange area for 2 weeks, but you can extend the time or delete the item at any time during the 2 weeks.
It may be best to start your description with FOR SALE or LOST or FOUND or FREE, then what you are posting - like SKATES or HELMET or GOALIE LEG PADS. We're open to suggestions... hopefully this area will be helpful.