There is a blank cube PDF that can be printed and used for class; I have used them for the days of creation, the story of Aichan, etc. Just add clip art or words and let kids roll and then tell you about the pic/word that is on the cube.
Snowman bowling using toilet paper. I stole this idea from someone else and used this in singing time. I had someone build the snowman but only if the kids were singing well. Lds primary singing time ideas.