For those that recognize the origin of my screen name, I am obviously required to propose
Kobold
If they find one shaped like a donut, we'll know Larry Niven had the inside track.
All of the Kuiper objects are inconceivably cold. If we are ever to benefit from them, (and isn't it encouraging that we don't have to leave the Solar System to have new planets swim into our ken?), we will have to do one of two things: Develop the ability to deal with cold on an almost Absolute scale, or develop robots that can do so.
Extreme cold materials science would appear to be a growth industry.