Quantity   Component name
1 × Wooden bar at least 40x25mm, 50x30 would be better
1 × Wooden bar 2 (optionnal) 8x20mm would be fined. I used cheap solid oak wooden floor. You can also cut that from the first bar.
1 × Wooden glue I did not have some, so I used cyanoacrylate (superglue)
2 × Razor blades
1 × Adhesive tape I used both large brown packing tape and normal transparent adhesive tape.
1 × A Saw You need it to saw.
1 × 0.5mm plastic sheet (optionnal) You can buy polystyrene sheets in radio commended hobby stores, or you can cut it from a milk bottle or any packaging from your last buy.