Can you still buy "scaffold nails" or "form nails" . ? We used to get them in 16 d size. they have a regular head, and about a half inch below that, another head just like it. Made so a carpenter can drive them in, hard, and still pull them with a bar easily. Seems like these would be the cat's meow for making nail points. Cut off the last head and still have a nice stopper to butt up against the end of the arrow, some iron inside and some outside for the point. How does that sound? piper