The present invention provides a customizable ear insert for fitting within a user's outer ear or ear canal or both and methods therefor. In accordance with an aspect of the present invention, there is provided a customizable ear insert having: a body formed of photocurable polymer, the body having a first shape configured for insertion into the outer ear canal of a user; a light source, the light source positioned adjacent the body, and wherein the body can be cured into a second shape by application of light generated by the light source, the second shape snugly conforming to the interior surface of the user's outer ear or ear canal or both.