My in-laws are really cool people. They went to Aurora, NC to dig through piles of sand for . . . shark's teeth! My FIL has an impressive collection of shark's teeth and he found a big assortment this trip. They did a thoughtful and generous thing - they brought home each family a bag of this special sand so we could have our own dig! We spread the paper out a few nights ago and found some very small teeth - it was fun! Thanks Grampy!