On a new shower gel bottle I bought, I saw it came with a clip to secure the pump-style cap. Not thinking much about it, I just threw it away. When it came to go on a vacation, I was packing my shower gel and shampoo (yes, I bring my own) and even if I twisted the cap to the "Close" position, it twisted back in the luggage and stained a shirt. Luckily I was still at home, designed a replacement clip in 2 min (and simplified the original a bit), printed it in 8min and was ready to go in a total of 10min. Isn't 3D printing great? 

So if you are like me and travel with your own dermato cosmetics, I highly suggest to print a clip like this and have some extra safety on the road (+ dry luggage). The diameter should fit a multitude of pump-style bottles as seen in the photos, but the height should be adjusted to your needs. The model is 12mm, just scale it on Z to your needs.

The clip is 1.2mm in width, so with a 0.4mm nozzle it just prints in 3-line width. If anyone needs different diameters or heights, just comment and I will quickly add a new one.

As a note, for better bed adhesion, you could add a brim to the part. This is very useful if you usually print fast as well.

Happy printing and safe travels!