The Black Swan Arts Centre in Frome currently has two shows on; the Black Swan Open in the Long Gallery, and the Frome Art Society in the Round Tower. Being part of the Frome Art Society, the other smaller art group I belong to has a few pieces embedded in the show. Two of them are interactive. It is all part of the 'All Together Now' exhibition.
The first asks for a square to be selected, cut and to let fall onto the canvas below. Then draw around the outside leaving a square outline. This has been in place for a week with another to go and as you can see, some people have gone a little 'off piste', but that's part of the fun. It has proven to be hugely popular so do have a go if you find yourself in the area.