But something I learned from Grant Morrison is that you can channel energy from literally any source and turn anything into a spirit to call on.
So I put a lot of energy into creating a spiritform of Luka, The Raccoon God of Luck from the hilarious A. Lee Martinez novel "Divine Misfortune."
I even made a physical representation, and I cannot for the life of me remember what those are called, but they are supposed to house the God's spirit:
