If you cook sausages in the oven the problem is to ensure even cooking given that one side of the sausage will be exposed to heat from the baking tray whilst the other surfaces are heated solely by the oven.
We have all had to rescue sausages which were charred at the bottom due to the uneven cooking process or had to try and remove sausages stuck to the baking tray, which usually involves leaving large amounts of sausage behind.
One answer is to regularly turn the sausages but who has time to do that?
Instead I propose using an automatic sausage turner.
This is a small spit into which each sausage is inserted. At each end of the metal skewer holding the sausage, supported at the extremes by simple A-frame mountings, there is a metal fan. This fan is painted dark on one side, light on the other and made up of bimetallic strips, this means that as the metal heats the fan turns and as the fan turns so does the skewer. This means that the sausage rotates automatically. It also means that the fat released by the sausage drains away from the cooking banger.
The skewer can be replaced by prongs for larger or odd shaped sausages.