Our Principle of Engineering class has a design build challenge to transport a ping pong ball across a two feet table gap out of tape and one manila folder. We were given 16 minutes to make this contraption.
We used a cup as a way to introduce the ball to the ramp, and a tongue depressor as a way to guide it towards the ramp and to get some momentum.
Our design was successful in that it went two feet and could possibly done an excess of that.