Oh man, I've pretty much stopped taking them. I had like 10 sets... I bet I only have a few left. They just lay around and get lost. I never do anything cool with them.
Collect them, place them in a sack in the back of the safe. Look at them, polish them every once in a while.
When you are in search of the perfect gift for someone, select a good colored cow tooth. Take it to the local jeweler and have them make a nice necklace, money clip, ring, earrings, etc. Doesn't cost a lot and your gift will be treasured for years!
Then look at he ivories in your safe, polish them and remember your great hunts. Give some to your grand kids.