To keep me in mind I've created a "Post Apocalyptic Industry 4.0 Arrow"
Step 1: Arrowhead
The arrowhead is build out of an old PCB from a CD drive.
Step 2: Shaft
I've enough broken arrows. To fit in the arrowhead I've slit one of them.
Step 3: Assembly
The two components are simply bound together. To strengthen the compound I've added some glue.