Making your own mock archaeological dig for a party, school, or scout project? Potsherds are a fabulous thing to include. Easy to make, incredibly inexpensive (about $1 for a whole bunch of pottery bits), and authentic enough to make your young diggers feel like real archaeologists!
All you need is a Sharpie, a terracotta pot, and a hammer.
Draw whatever symbols you want on the pot, and then--you guessed it--smash.