I'm going show u how to make some throwing needles u can use at home itll take about 10 minutes
Step 1: Tools
To make these throwing spikes ur gonna need some needle nosed pliers,some wire cutters,a metal coat hanger,a block of styrofoam,a trashbag,some yarn(optional),and foil(optional)
Step 2: Cut the Hanger
all u have to do is cut the coat hanger at the darker spots in the picture.
Step 3: Bending the Needles
if u dont have any needles nosed pliers u can just use normal ones.If u do have some u can use them to bend the end down.
Step 4: You Should Get Something Like This
the tital says it all
Step 5: Details
u can add some foil on the top to make it easier to find in the grass.Then u can wrap it in the yarn how ever u want to.