A friend gave us one of the original cubes awhile back. We played with it, but never actually witnessed with it. My wife is a Bible teacher who disciples many, but we don't often evangelize strangers that need a quick explanation of the gospel.
However, God knows what He is doing and the reason we got the cube has now occurred.
My wife is going on a mission trip to train pastors in Africa who do not speak English. The cube and pictures is a perfect tool. We bought 100 of the small cubes to take and give to the pastors. Through an interpreter she can train them to use the cube to present the gospel to others and at the same time teach them the basic core of our faith - Jesus has paid for our sins with His death and has been raised from the dead. He is our ONLY hope of joining God in heaven.