My Novelty!
I've been making square pegs made from pieces of fronds. At first I was using regular wood, but it dawned on me that I had plenty of pieces of fronds lying around, and eventually realized that they are way easier to work with. The first peg I made fit perfectly into the groove I made at the end of a frond. I inserted the other end of the peg into another frond, that also had a groove at the end of it. Once I inserted the peg, both fronds were attached together to my surprised and delight. In the process of experimenting with the technique, I did discover a few things that enabled me to get better at making the grooves and pegs. I found that cutting the pegs a certain length and width, allowed them to neatly connect two fronds together. I went through a lot of trial and errors as I was learning how to join the pieces of fronds as close to the way the Ancient Egyptians used to build their boats. Building the hull this way, eliminates the need to use glue, nails and screws.