Love them. Easy to handle and come in beautiful varieties. I had a normal one when I was in college that I used to teach environmental education to students with.
I'm a stay at home mom to the coolest 2 year old little boy ever. Mostly my life is play dates, happy meals, playgrounds, errands, field trips to parks and museums, playing with our animals etc. In my former life I was a staff scientist for an environmental engineering firm.