Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to make a zipper necklace [title] Cut the zipper off any clothing if you're re-using a zipper from an old garment. [step] Cut around the area containing the zipper and then unpick the thread that held it in place. Then treat it the same as for the new zipper in the next step.

Ending1: [title] Pick up the discoloration from the new zipper. [step] Use a scissors to cut along the high-edges of the newly-sewed zipper, then peel the temporary backing off to reveal the actual zipper. Ending2: [substeps] If you don't have any clothing, use scissors. Try to cut just the piece the zipper won't fit into. Ending3: Only use this method if the zipper is still attached to the garment. [title] Punch a hole 2 or 3/4 of the way down the zipper seam. Ending4: [title] Cut the zipper in half lengthwise if you're using a new zipper. [step] You only want to use half of the zipper to create your necklace; use your sewing scissors to make a clean along the bottom.

Answer format: ending1/ending2/ending3/ending4