Your one-shot prompt
Build a marketable mini-offer called “Surplus-Materials Exchange for Trades” for trade businesses and makerspaces in one region. Center it on “a moderated listings board with pickup rules,” with an immediately clear benefit.
A workshop discards useful leftovers while a nearby makerspace needs that exact amount. Your local exchange matches clearly described, lawful surplus between organizations. A precise material description turns apparent waste into a worthwhile match.
Build a marketable mini-offer called “Surplus-Materials Exchange for Trades” for trade businesses and makerspaces in one region. Center it on “a moderated listings board with pickup rules,” with an immediately clear benefit.