It'd be grand if you could place the teapots like you can with tea cups, purely for decorative reasons.

If one were to go even further with it, teapots could also be filled and heated in this placed state using buckets or campfires respectively. Or even mods that add water pipes, stoves etc.

Sorry I made a mistake. I didn't realise Tea Kettle modified Simply Tea to allow it to do all the same things.