Looks like someone else has also had the idea to create "Lincoln planks" for the kids to build with. A permanent installation like this could also work well in the right setting, doubling as outdoor seating as well as a balance course
I'm particularly fond of the Modern Playhouse, but all of these are great looking pieces to add to a kids room or play area. From the Playroom Collection by CedarWorks. Made in Rockport, Maine and designed to last.