A simple 1/4" 1/4-20 UNC female (camera mount) to M5 male thread adapter.
This part gets lost very easily but it is required to fix Olympus LS-P2 to a tripod.
Tested with PLA and it is strong enough to support the voice recorder.
Of course should not be tightened too much and it will not withstand strong loads.
The author hasn't provided the model origin yet.