Our dishwasher’s (a Bosch SPS53E18EU) door is either fully closed or half-open and in the way: the door’s spring mechanism pulls it closed if it’s open less than 45°. We like to keep it slightly ajar to avoid smells to build up inside. We are using a small plastic plug to do this, but it’s annoying as it falls down when the door is opened and one has to replace it carefully when closing the door back.

This thing can be clipped on the device and hold the door just slightly ajar and can be clipped off when you want to close it. It falls down if the door is slammed close but it can withstand normal usage. Good precision is not required, but it needs to be robust, so I printed it with 0.2mm layer height and no infill.