Banners are good. Banners are a useful way of breaking the ice when I’m running sessions in art. A lot of adults feel intimidated by ‘art’ and that they can’t paint or draw. Doing banners means they can drop by and do a few brushstrokes or they can get absorbed for a couple of hours. The group came up with a starting point of writing words and from then on it was colouring in on a big scale, with acrylic paints (Liquitex). We’ve nearly finished, maybe one more session then on to the next banner.
scribblah 
We sort of worked this way for the mural we completed last summer. Volunteers who had never lifted a paint brush were given areas to fill in that didn’t require any particular expertise and everyone had a great time. The banner idea is perfect!
It’s a great way of involving people in art, isn’t it?