Unwind a paper clip. Bend it in half - the point is to get a loop that's much narrower than an original clip. If a paper clip is not available, try any other wire of similar hardness and thickness.
Wrap the bent end with regular cotton wool (if not available, substitute with a piece of soft toilet paper or paper hand towel).
Two things to be careful of:
- The wrapper material should be in one piece (best to try and hold a small scrap of it with one finger while cleaning) to make sure no piece of it stays inside.
- Operate carefully with this improvised device so that you don't injure the ear canal.