When making home made ice cream, we often just take the whole canister once its finished and put it in the freezer.

The lid to our Rival (and others) ice cream maker has a hole in the top for the dasher to attach to the motor so the cylinder can spin, and I thought it would be a good thing to be able to plug that hole when the ice cream is done and sitting in the freezer!

Simple design, good enough.

I used PLA at 25% infill with no supports.