Inspired by the work of Chaozzz, I also needed a holder for my WD40 straw.

However, Chaozzz's design is suitable for the 200mL specification of WD40 (despite being labeled "small"), but my WD40 is 100mL. Therefore, I redesigned this straw holder for WD40 100mL. And I adjusted the tolerance of the part that holds the straw, so that the straw can be pressed into the semi-open hole and will not slide up and down (with a slight interference fit).