TalkBoard allows you to access your iPad's photos and utilize them in a custom board! Make a 1X1 board, or a 10X10 board! Add pictures, text, timer (for scan feature), branching (have app move from one board to another with the tap of a finger!) and of course sound!
This app has helped me many times when a client has forgotten a communication device, or did not have one accessible. In less than 5 minutes I was able to create a personal board for the client!