u/Etherealclown

Hi! I feel like I’m going crazy because I have no idea what words to use to search for the right product. I want to make my own soap dispensers but I can only find “replacements” where you screw them on to an existing bottle neck. I WANT THE NECK PART TO BE INCLUDED. So I can put the dispenser pump on anything but I feel like I’m loosing my mind just looking at every listing but none of them seem to have this trait. I feel like they must exist, can anyone help me find some or the right terms to search to find them? Thank you for reading:)!