Soap bubble container belt

I'm a bubbles fan and yes, I give away 10 to 20 "Pustefix" bubble tubes at every CSD. But with style, not out of the box. That's why I designed a belt holder into which 5 tubes can be pushed. Each segment can be extended with an M6-20mm screw and corresponding nut. The strap is attached to the eyelets of the backpack with two printed carabiner hooks.