I received a generous donation to my art department last year. Part of the money was invested in the video editing software, Camtasia. I have been having fun learning the software and creating demo videos for my students. I love it because I can be sure that I am giving all the classes the same instruction (let's face it, by the sixth presentation I'm sure to forget stuff!), and I save on supplies by only making one sample instead of seven! Plus, our district is a Google district, so we have our own YouTube channels through the district which saves the videos in case I want to use them in future years. Here is a video I created for a fourth grade project making Molas out of felt after introducing them to where Panama and the San Blas Islands are and telling them a rated G version of the Kuna Indians history.
I feel I should mention that I pause and fast forward the videos based on student interest.