The Harmonograph A harmonograph is a mechanical drawing device that shows the relationship between weight intervals. The vibrating frequency of an object has a direct connection with its physical proportions.
DIY Concrete Leaf Bird Bath DIY Concrete Leaf Bird Bath - love this idea! Those leaves look like rhubarb leaves to me. Hmmm may have to do something like this. Especially if I do a cob house some day, this would be a great wall feature/shelf.