Manual of Golems

This tome contains information and incantations
necessary to make a particular type of golem. To
decipher and use it, you must be a spellcaster with
at least two 5th-level spell slots. A creature that
can't use a manual of golems and attempts to read
it takes 6d6 psychic damage.
Golem Time Cost
Clay 30 days 65,000 gp
Flesh 60 days 50,000 gp
Iron 120 days 100,000 gp
Stone 90 days 80,000 gp