Here are a few simple steps to turn a paperclip into a safety pin. It doesn’t work with all paper clips because some are cheaply made, but it could work in a pinch if you needed a safety pin for a bandage.
Step 1: On the outer piece about 1/2 to 1/3 the way up make a 90 degree bend like the picture below.
Step 2: Next take your multi-tool pliers and make a loop in the section that you made the 90 degree bend on.
Step 3: Next take your multi-tool pliers and grab the clip at the other loop and start to bend your spring.
Step 4: You can now straighten out the other loop like so.
Step 5: Just twist your catch loop a little and a little upward bend on your pin section and it should be good to go.