How to fit sensors for Arduino / RPi into the interior?

Question

Arduino

Good day!
At the moment there is a hobby project: to make a smart apartment.
At the moment, the apartment has bare walls and you can do whatever you want with it.
There are also a bunch of various sensors / sensors / modules that, let's say, do not look very stylish. For example:

or

to which you still need to solder the wires.
Please tell me some interesting solutions on how to hide all this or fit it neatly into the interior (reasonable price is especially important).

Answer 1

In my opinion, the main thing is to decide on the design. As soon as you make sensors in the same style, it will look more aesthetically pleasing.
A good option can be caprolactone (polymorph) here is a link to the manufacturer:
Choose the original shape, color (it can be painted, bent, drilled, etc.) and go!
I use it to create piece parts in robots (it's hard to find levers, gears and all sorts of rubbish of the right size and shape on the internet).
Here is an example of what can be done:

Answer 2

Build cable channels into the walls, make repairs - then think about it =)