Graft Flesh( Lords of Madness, p. 216)
You can apply a certain type of graft to other living creatures or to yourself.
Heal 10 ranks,
Choose a type of graft: aboleth, illithid, or silthilar. You must be an aboleth to choose aboleth grafts. You must be an illithid to choose illithid grafts. There are no additional requirements for choosing silthilar grafts. Other races aside from these three can create grafts; see the Fiend Folio for beholder, fiendish, undead, and yuan-ti grafts. You can create grafts of your chosen type and apply them to other creatures or to yourself. Creating a graft takes one day for each 1,000 gp in its price. To create a graft, you must spend 1/25 of the graft's price in XP and use up raw materials costing half this price.