I was collecting HDD platters for couple of years for no particular reason but I ended up the idea for making a small lamp with them.

I used 12V led strips and roll it around the led stick like a lightsaber. Led stick have too parts for increasing the strength of it. You can just glue it and tuck it inside of the stick(Depending on your printer's print quality you might not even need it).

There are two kind of spacer, spacer_big for 3.5 HDD drive platter, spacer_small for 2.5 HDD driver platter.

spacer_big, center_diffuser, spacer_small parts needs to be printed with transparent filament other parts are depending on your choice.