Maaaaa! Daaaaa! What are these for? Since we started building our barn, the quantity and variety of cool construction scraps has been steadily mounting. Everyone has an interest in those scraps, including the newest Bird House kids. Well, at first we just stacked the 2x4s and let the goats walk the planks, so to speak. Then I rolled in a eucalyptus log I salvaged last year, and that was fun. They really do play king of the mountain. And we added wider planks from the barn siding. Then I got…