Garden Stew Forums website share a step by step picture tutorial with detailed directions how to make a large leaf do it yourself birdbath project.
Do you grow rhubarb in your garden ?
Rhubarb leaves fully grown can be from two to five feet across so they would work wonderfully for this project.
For the record: the largest recorded rhubarb leaf is 11 ft wide.
Click here to read how to make this project:
http://www.gardenstew.com/about22738.html
