I use the centrifuge tubes to pre mix my supplements for the week.

This way I just have to add water (to around 45 ml) stick it in the massager and give it a go on full speed for a few seconds.

The model needs to be printed in this orientation to evenly distibute the forces from the massager along the layer lines to prevent it from breaking down early. Therefore a whole lot of support is needed to make it fit in the massager (i used the support filament as interface for clean overhangs). Also one elastic ring from one of the massager heads is needed to make it fit neat and tightly.

A small piece of anti slip furniture glider is added to increase the clamping force between adapter and centrifuge tube.