Two-piece cue stick holder. Beware that the upper diameter of the bigger end is slightly smaller to follow the cue stick. The little notch on one side is there on purpose, so you can feel where the thick side needs to be. I designed it so that the cue tip and the cue bottom goes side by side.

Although depending on the material you use, you can ‘snap’ the sticks in, but I prefer to just slide them in until it's snug.