I also have been introducing the dynamics and having students tell me which dynamic I am using in various songs. We have been speaking the words with the appropriate level of voice. So piano is whispered and forte is with a very loud voice. They like being able to be loud!
Today we played a fun game with Zoo Pal plates. Zoo Pals are plates with animals on them. I matched up the plates so that there were two of each animal, just like on Noah's Ark. On the back I asked a question like what note has four beats? The answer would be on the matching plate. Students would come to the front with their plate and turn the plate with the question around. Then I would see if any student knew the answer. Next, I would have the other student with the matching plate turn over their plate to see if the answer was right.
Another way to play would be to have all the plates scattered on the floor and see if the students could match up the question and answers. They would know they were right if the animal matched.