A musical instrument slide for a stringed instrument and a method of manufacturing the same includes a slide body defining an outer wall, the outer wall configured to affect sound produced by the instrument when applied to one or more strings of the instrument. The slide includes an inner wall within the slide body creating a space between the slide body and the inner wall and further includes fluid, slurry or the like within the space between the slide body and the inner wall, which may further affect the sound produced by the instrument when the outer wall is applied to a string. A removable collar may be included with an aperture or opening that may vary in size to accommodate multiple users.