Simple solution to all your dice problems! Stick two dice in a small tupperware container. Have the children shake the container and look at the dice. No "throwing" dice or losing them either. I will probably use foam dice as they are noiseless.
TVD ended with 171 episodes. It really was his story, and I loved that the last scene ever we've got of TVD was one of Stefan and Damon finally letting each other be at peace and happy in the afterlife.