Do your student ask when will I ever use this? If you are getting ready to teach Volume, here's a great example. The students will be excited to learn about how to possibly win this contest when they see it the next time.
My students have been asking to play a GimKit again. I shared with them, that's it's hard to make math problems look right on many of the game based websites. GimKit has added a new equation feature about 2 weeks ago which makes adding equations and other types of problems super easy. If typing the math is the reason that you haven't been using GimKit, I recommend giving it a try again.