Tribest Dynaopro DPS-2250 Sound Lid

Reduces blender noise by 10db from an average of 91 to 81db.

Lower half and tpu gasket can remain on blender at all times. Upper half is removed to allow placing blender craft/jar. Use slicer to break STL apart by objects or use 3mf file. Larger nozzle recommended to save on print time.
 

Fits Tribest Dynapro DPS-2250 (no affiliation, just a nice food blender I purchased a while ago.)
 

Editable model available in onshape.