Grafts from Libris Mortis (I'm using traditional item slots)
Bonemail
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: Body
Benefit: The grafted creature gains a +2 natural armor bonus
Penalty: -xxx
Desecration: For every two corpuscles, the natural armor bonus increases by one.
Bodak's Eye
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: Face
Benefit: The grafted creature gains a xxx
Penalty: -xxx
Desecration: For every two corpuscles, xxx Scrapped, too imbalanced
Enervating Arm
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: One arm
Benefit: The grafted creature gains a +2 to strength and some sort of negative level touch attack?
Penalty: -xxx
Desecration: For every two corpuscles, the touch attack gets better?
Eye of Flame
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: Face
Benefit: The grafted creature gains xxx
Penalty: -xxx
Desecration: For every two corpuscles, xxx Wow this graft sucks.
Paralyzing Arm
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: One arm
Benefit: The grafted creature gains a +2 to strength and some kind of paralyzing attack?
Penalty: -xxx
Desecration: For every two corpuscles, the DC gets better or something?
Undead Skin
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: Body
Benefit: The grafted creature gains a 10% chance to negate critical hits and precision damage (such as sneak attack)
Penalty: -xxx
Desecration: For every two corpuscles, the chance to negate critical hits / precision damage goes up by 10%
Vampiric Fangs
xxx Graft
Required Level: xxx
Grafting DC: xxx
Slot: Face
Benefit: The grafted creature gains Con drain and maybe a bite attack (yes, I know Vampires don't get a bite attack).
Penalty: -xxx
Desecration: For every two corpuscles, things get better.
At least this is something you can work with.