When I was little, I had a similar step stool that converted to a chair:
http://www.amazon.com/Classic-Stool-Chair-Letter-Color/dp/tech-data/B00…
I would love to build one for my son...It looks like it would be relatively simple to build, too. Due to the fact that I have a newly mobile 8-month old crawling around, I don't have 2 minutes (or 2 brain cells) in order to plan this out.
So, if you're inclined to build it I'd be forever in your debt for sharing plans ;)
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