Bill, that's an excellent 3 legged stool and your granddaughter will love it, something to be cherished for generations.
I made my kids one each when they were very young and they still have them 30 odd years later.
That's a cannie cracket Bill
Sorry Vic but it isn't a cracket IMHO. A cracket is a much more simple stool first made by miners out of any old scrap wood, to rest their heads whilst working in low seams and sit on to eat their "bait".
A bit like the posh version below which are now desirable items. I made my son one of those to stand on when he couldn't reach the bog for a pee