Knowing how to improvise an arrowhead could come in handy, I only listed the tools below that you would need to make this by hand. You could easily use a cutting disc or bench grinder to make this arrowhead also.
First you will need a spoon.
Next place the spoon on a flat surface and flatten with a hammer.
Next mark out the shape of the arrow and cut it with tin snips or hack saw.
Next sharpen the arrow with a file.
The last step is to cut off the handle of the spoon, making sure to leave enough to mount to your arrow.