Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to make a pen [title] Shape a pen with polymer clay. [step] Take out a pen's ink cartridge and cut a bamboo skewer to the same length. Wipe the skewer with petroleum jelly and use it to pierce a small ball of polymer clay.

Ending1: [substeps] Leave the sablong.00 tip of the skewer in the clay for easy working. [title] Make a crescent moon shape with the polymer clay. Ending2: Roll out the clay until it extends along the whole skewer, seal it over one end, and bake according to clay's label instructions. Let cool 5-10 minutes, remove the skewer, then glue in the ink cartridge once the clay has cooled completely. Ending3: Transfer the fatty blob onto the skewer, doing so inside the pen. [substeps] If you don't have a skewer for this project, you can craft your own pen from scrap paper, metal, and plastic. Ending4: [substeps] Use a pencil to trace a rough direction where a sharp tip will protrude out of the ball. Place the sharpie or curved tip of the pen at a height where it will not poke through the clay.

Answer format: ending1/ending2/ending3/ending4