Dalziel + Pop, a creative agency in London, is currently exhibiting at the Retail Design Expo in London. To demonstrate its skill set, the company built an interactive display using screenprinting with conductive ink. When visitors touch any of the 48 elements, up to 100 possible light animations activate. The company suggests that this is a great way to interact with potential customers.
I've never heard of conductive ink before. But now I want to see if I can use it in a crafting project!