No need to invent anything new here. We simply need to take the old Roztkus, cut off the excessive parts and insert it into a power socket.
Checking out how it might look.
Estimating the dimensions and the layout of the contents.
Creating a working prototype.
Slightly decreasing the size and optimizing the layout.
Placing the logo.
Suggesting colors. Choosing two and preparing a color and texture scheme.
Explaining to the manufacturer that since the logo must be on top, there must be only one way to align the case and the cover. Otherwise it would be possible to assemble the device with the logo on the side.
For some reason, the manufacturer rebuilds exterior surfaces several times over.
Pointing at the mistakes.
Project documentation.