You can purchase custom molded earplug kits online and in some stores.

The plugs should feel comfortable and not too tight or loose.

Keep in mind that you should only use toilet paper earplugs if you have no other option. Do not use toilet paper earplugs on a regular basis because pieces of the toilet paper may stick in your ears and cause an infection. [4] X Research source Only use toilet paper earplugs as a short-term fix, such as when you are at a concert. Do not sleep with toilet paper earplugs in your ears.

If the wads shrink from the water, you may need to add a little more toilet paper to each wad. Wetting the toilet paper is important because dry toilet paper will not block noise as well. Dry toilet paper fibers may also stick in your ears and this can cause an infection.

Make sure that you reshape the wads before you try to put them into your ear canals again.

If you need another pair of earplugs, use two new, clean pieces of toilet paper.

Choose regular size cotton balls rather than jumbo size ones. You can purchase sterile or non-sterile cotton balls since the cotton balls will just be wrapped in plastic anyways.

Use an antibacterial soap and wash with warm water. Dry with a clean hand towel.

Wrap the plastic wrap so it tightly covers the ball, but not so it crushes it into a flat shape. If you use scissors to cut the plastic wrap, make sure they are clean. You can wash them in an antibacterial soap or dish soap with a clean sponge.

The ear plug should feel snug, but not like it is cramming into your ear canal or stretching it out. If it feels loose, then you will need to adjust the size as well. You can add additional material from the cotton ball to the ear plug or you can take out part of the cotton if it is too large. Be sure not to cram the ear plug too far into the ear; this could cause damage to the ear canal. The ear plug should rest just at the entrance to the ear canal, not beyond it.

Take your pair of scissors and snip off the small tail of the plastic wrap. Be sure to leave a little bit hanging out of your ear so that it will be easy for you to remove the earplug.

If you plan to sleep in the ear plugs, take a nap to test them out. If you sleep on your side, you might need to adjust the size of the plug for the ear that you keep pressed to the pillow.

Store your ear plugs in a sanitary container, such as a clean plastic sandwich bag.