A design which can keep your collection away from dust but you can display it in nice and tidy manner. Two sets of sizes you can download from source is 6565 and 7590 which represents 65mm X 65mm and 75mm X 90mm in width and depth of the displayable area. Height is not limited in this project and you can adject the height according to your collection. Sugget that collection height is 2/3 of the display box height. E.g. 6cm tall of collection wil have better look and view with 9cm tall light box.

All items you needs in this project:
1) 3d printed base (xxxxbottom.stl)
2) 3d printed top element (xxxxtop.stl)
3) 3d printed top cover (xxxxtopcover.stl)
4) 2 X 2mm acrylic sheets (width + 4mm X self-defined height + 4mm)
5) 2 X 2mm acrylic sheets (depth + 4mm X self-defined height + 4mm)
6) 3 X 12v led strip (5cm long per sector)
7) 1 X 12v battery 23A and battery case holder
8) 1 X small switch for on/off led
9) Few electronic wire
10) Basic knowledge on electronic and welding skills