[MikkiJayne]

I'm nearly ready for production with these

The final version is a single-piece with a V-shaped tongue and groove that locks together once it's in the hole - no glue or sealant needed.





I experimented with a bunch of different flexible filaments to find the most suitable, with pleasingly serendipitous sample colours from the suppliers



Fitted







I'm just waiting on a roll of the chosen filament to turn up now, then I can start printing the first batch