The most impressive display I have seen on Mammoth was in the Darmstadt museum of natural history. I suppose the crowning item was a full sized model of a small (adolescent?) mammoth. I was surprised at its reddish hair.
We find their bones frozen in the earth in Alaska on a fairly regular basis, and my Fairbanks neighbors gave me a piece of tusk (or it could be mastodon tusk). Siberia is the riches place to recover them, and they have been recovered fully frozen, flesh intact and there are stories of the Czars serving mammoth at dinners.
It is fascinating, and there is talk of a Japanese team trying to bring mammoths back to life from recovered DNA, much in the fashion of 'Jurassic Park'. I would like for them to succeed!
Kai