I find the small containers hard to keep track of and easy to knock over. So I designed a tray to hold them. Each try can hold 5 paints, and has a slot at each end that can hold the cement tube.
There are hooks at the front that can hold a paint brush - I have a matching set of holes in the back of the tray, so you can also use these to connect multiple trays together.
Finally, I have a row of small bars along the front edge, so you can insert a strip of paper with notes/colors to help you keep track.
The author hasn't provided the model origin yet.