I have a whole side of my house full of logs from cut down trees, just waiting to be chopped into firewood. I have tools just waiting to be rebuilt or refinished. Tables needing to be resurfaced. So many projects (and after I finish this post and my wife reads it I will probably spend some time listing some of these things on Freecycle to get rid of them).
Seriously, if you have never been on a tandem bike before with somebody who is EXTREMELY excited and bouncy and you're the one trying to keep the balance and steer the thing, then you don't know what fear is.
But seriously, this was a really fun project to work on with my daughter. And while I probably could have purchased a used tandem bike for what I spent in parts, the time that we spent working together will always be a great memory.