Step 1: Weapon Types
(The knife is a example of a sharp weapon)
Step 2: Finding a Blunt Weapon
Step 3: Finding a Penetrating Weapon
All that need is to have a spike like these close combat ones
Step 4: Finding a Sharp Weapon
Step 5: WARNING
These weapons can harm someone. Use responsibility and do not use on people or animals unless you have to. I am not liable for if someone gets harmed.