Step 5: Stock up 30 of the Shapes
Each shape is identical and it has 2 curvy sides and 2 straight sides. To lock each shape in place, you need to remember that the curvy side is mating with the straight side or vice versa. No straight side mating to straight side or curvy side mating with curvy side.
There are You Tube Video showing people how to construct the IQ Lamp.