i need to find out how to make a knife anybody got any ideas?
I'm pretty sure mines the best answer :) (just kidding)
Grab a piece of rectangular metal (size depends on how big/wide you want it). Whack 1 or both edges from either side (top and bottom) with a hammer on something hard. An anvil, paving etc When its flat enough, start sharpening it using a knife sharpener or even a flat stone. Hope this helps.
EDIT: Grab a thin piece of ......
First idea: Check under "related" at right, or use the search box; there are at least two instructables on that topic.