The Tributary Kusudama is suitable for intermediate Origami beginners and onward.
Paper, Ratio & Measurements
The Tributary Kusudama only shows the paper from one side, so it is not necessary to use Duo Colored paper. You can use regular Kami paper or specialty Origami paper (See here for an overview of different kinds of Origami papers.). For my Tributary Kusudama I used Senbazuru Harmony paper from Showa Grimm (Japanese).
You will need 30 sheets of square paper. The measurement I used for my project was 7.5 cm / 2.9 in. For my personal abilities, this was not too small or difficult in the assembly. You might want to use bigger size paper, if you are not confident yet with Kusudama assembly.
Folding of the Tributary Kusudama
The Origami folding is very easy and straightforward. All folds have easy reference points and the sequence of steps is easy to remember.
To assemble two Tributary Kusudama units together, you slide the flap of the one unit into the pocket of the other unit. I made the mistake in my video of using dark colored Origami paper and did not realize that dark paper does not show very well on the video. If you are having trouble following the part where the units connect together, you can enlarge your video to full screen and/or look at the pictures here in my article. Here it is easily visible how a unit has to look if it is correctly connected.
Even when folded at a relatively small size, the assembly is not too difficult. I did not need any additional help like paper clips or craft clothespins. The units stay connected during most parts of the assembly. And even if one unit slides apart, all other units stay connected.
The assembly follows the general rules of 5 (stars) and 3 (peaks). In the video only the first 5 unit star formation is shown. From there on, you connect 2 existing units together with one new unit (altogether 3). And again the same process of forming a 5 unit star repeats.
I really enjoy to fold and build Xander Perrotts Origami and kusudama. Each time I discover some new and interesting way units lock together. This one, the Tributary Kusudama, is no exception. If you have moderate Kusudama (assembly) experience, this Origami project should not be too difficult to accomplish. Have fun!