[Aurornis]

Cool project. The author used PLA, but for anything near a heat source PETG or ASA would be a better choice. PLA will soften and deform at only mildly elevated temperatures. An LED light strip will generate enough heat to cause normal PLA to warp and droop over time.

[JKCalhoun]

Was going to comment similar. Definitely don't want to use these lamp shades with incandescent bulbs (too hot).

As per drooping over time, perhaps for some of these models the "Persistence of Memory" might apply a nice transform to the shapes.

[hessammehr]

Good to know about the risk of deformation due to heat from the LED strip. Ours hasn’t visibly warped over the past few months of use, fingers crossed it will last a little while