Wyrmgrafter( Races of the Dragon, p. 101)
You can apply draconic grafts to other living creatures or to yourself.
You can create draconic grafts and apply them to other living creatures or to yourself. Creating a draconic 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. Draconic grafts are described beginning on page 126.