Oster Blender Fusion lid insert

One version of the Oster Fusion blender has a lid with a D shaped insert.  This is a replacement insert. 

It is not structural or all that important, just a little plug to keep the blender from spraying food out of the lid.

I printed in blue PETG 20% infill, .15mm layers.  I put a bit of plastic wrap over over the hole and push the print into the hole.  Plastic helps hold it tight and keeps food from getting into the print.