The great advantage of having a 9" Lich plush is that they can never die. Ever. They're already undead, and now immortal. So you will ALWAYS be able to hug them. Always.
Immortality has its drawbacks. No one knows this better than the 15" Lich. Honestly, they could just really use a hug. Why not give them one every day?
Make your own spellbook filled with magic from the Advanced Player's Guide for Pathfinder 2nd Edition using these very handy cards! No more tens of sticky notes in the book, or hurting your hand writing it out on a separate sheet.