Wow! This is so cool! Instructables user MariaK64 bought an IKEA PS 2014 pendant lamp and modified it so it could look like the Death Star. The “Exploding” feature comes already built-in with this particular model of lamp, so apart from masking and painting it, there’s not much else to do!
If you’re interested in making one for yourself, the lamp can be purchased here.
[IKEA PS 2014 Death Star Lamp]