The Khatt Items Hook Cuff Pendant Shade makes use of laser technology. Laser cuts fast and precise through many plastics, Acrylic in particular. The disadantage of using plastics for lampshades is that the material is limited heat resistant.
Thin multiplex wood is another option to use as base material. It is more heat resistant but the lasercuts will color dark brown.

Finally, there is thin (0.5mm) metal. Heat resistance is no longer a problem but production costs are much higher.

The Hook Cuff pendant is a nice informal product that is easy to customise and can be used four or three sided, depending on the amount of panels used.
The three panel version can only be used with thin material. The standard thickness of the material is 3 mm. The 4 sided lampshade is 220 mm heigh and has a base of 178 x 178 mm.