You should make needles by this method.
Step 1: Make a prototype Needle.
Step 2: Make a mold of the needle.
Step 3: With a disposable pie pan, heat some hot glue stick on a stove.
Step 4: Add some sort of coloring.
Step 5: Pour the melted hot glue stick into mold, wait for it to dry and BAMM!!!
You have a needle.
Hope this helps.