Fishing float (no glue needed)

thingiverse

This design is a screwable fishing float and therefore doesn't need glue for connecting the parts. The printer should not have too much tolerance for the threads to fit. Using PLA and 15% Infill you can attach approximately 3.6 g to it (water level between the two main parts). It makes sense to use different colours for the upper part, this would make it easier to distinguish them if you use multiple at the same time. Disclaimer: I hereby exclude any warranty for the reliability of these parts especially for any damage, injury or death.