Finding a good branch for my project was not as trivial as it sounds. Düsseldorf is a City and within its city-limits there are parks, but they are pretty clean and dapper.
So I had to ride into the Gravenberger Forrest in the North with my bike to look there for a dry, opulent branched, unbroken and unmolded branch.
It took me several trips to find my branch of choice.
This is the closest I will ever get to know, what it is like being a dog.

At first I dried the branch in front
of the opened oven.
I removed some smaller twigs and let it hung in my kitchen for some days to get a feeling for his best side and arragement.
Meanwhile I wrote my first lines oft Software to simulate the pulsing mood for the lampions I wanted to achieve.

I took my dremel and carefully
slitted a thin grooving on the back of the branch
all the way from the bottom of the stem up to the smalest twigs to hide the thin wires inside the wood.
In the end I drilled a small cavity into the end to secure the connector in its place. All without braking the dry branch.

The grooves had to be wider at the bottom, as more wires were running up the branch. The twigs further up could be carved smaller.