What is there to say about these except "very fun". A person could spend a lot of time just messing around with these. I have been teaching classes to other teachers and will include some of these in my next class. Kids would think they were fun too and might be more motivated to work on a project if there was some time for creativity.
I am an occupational therapist working with special needs children in schools. I have been working for Sparta Area Schools for about 20 years and worked in other districts prior to that. I received my undergraduate degree and my graduate degree from Western Michigan University. I have three sons and four dogs that take lots of my time and attentions. During my "free" time, I like to read, make jewelry, knit and do a little sewing (and I obviously read way too many blogs).