Anyone wanting a ton of fun ideas for variant liches should check out Pointy Hat's channel, he's doing a whole series on custom lich types for different kinds of spellcaster (and he also just did a Barbarian Lich type, the Scourge, so he's branching out to non-spellcasters too).
So like, the spooky version of clapping Tinkerbell back to life?
goddammit.
Basically yes