For my mosaic art I'm using something that can easily be found at any home improvement store... electrical tape.
Did you know that it comes in these fabulous colors? It's very cool stuff because it has just the right amount of sticky for a project like this.
I used a wider version of the tape to create my faux tile backsplash here in my aqua and red kitchen.
I'm creating my faux mosaic art by repurposing a $1 thrift store quiche pan with a removable bottom, which makes it much easier to create the picture.