This is what Solstice Sing for Peace is all about... regular people making stuff happen! Karen Powers and The Ourobouros Solution started a blog to help them organize their Solstice Sing for Peace event! You can too!
Visit this blog (North Quabbin Solstice Sing for Peace)... start one of your own... less than two weeks remain until Solstice - but that's more than enough time to create an event.