What is the internal temperature Of a tauntaun?

I wear a cap, but lack a head, I grow where light and warmth have fled. Though gills may line my underside, no fish are found where I reside.

I can be created in a glass, fun to play on, or hold ships. If I spiral out of control, I can be deadly or simply just spill out.

I walk with everyone I speak to no one I knock at no door I am always certain What am I

We are compiling a list of the top twenty best vegetable puns of all time. We need a few more to complete the list, so if you know any good ones then please...