We recently ran a short code SMS campaign (sweepstakes) for the Jerry Garcia Symphonic Tour. To help promote the sweepstakes onsite we came up with the idea of using inexpensive modular banners with the sweeps information. These banners were created in a day, and used to promote the sweepstakes at each show venue (in additional to digital signage).

The following photos demonstrate the simple setup of the banners.  You can see the banners in use here:
https://www.metablocks.com/2016/06/jerry-garcia-sms-campaign/