Thanks Kevin, these are all development work. Still not happy with them all, but they are functional. Some of those I had the idea of a last ditch knife, but have since thought more along the lines of spear/arrow point. I have enough knives, but would hate to lash one to a pole.
For fish, a barb is nice. For other game, not needed, and might loose you a spear.
Wrap with unscented (flavored) dental floss so it has cord to lash on it.
Ti is soft, so it won't keep an edge through abuse, but should be able to keep it touched up with a rock. It also is very unlikely to snap, but would more likely bend, also should be able to straighten in field.
Got some more ideas for these, I just need to get some more time to try them out. I like to cut a willow every now and then and lash one of these on and play with it. Gives me a good idea of what is and isn't working.
--Carl