The small persons trike, I think I call it the Baby Tribolt, is almost done now. Here's the cable routing for the rear derailleur. It can be one piece of cable housing. But I want to be able to partly clean and lube it once in a while.
Little brackets like that can take up a couple of hours depending on how good you want to make them look. It's a piece of the tube I used for the frame 4mm thick.
As with all trikes this one too sees first daylight in the living room. Very few trikes have been made in the garage only or are unpacked outside. This clearly distinguishes trikes from bikes.