several pieces of chalk (in different colors)-used for marking the way in dungeons, or for leaving messages on rocks, in caves, etc.
a pouch of powdered chalk-great when facing an invisible enemy (ever been in a closed room and clapped a few chalkboard erasers? dust settles on EVERYTHING!), or to cause someone to choke and sneeze by throwing it in their face
a small mirror-useful for signaling, or to watch to see if you are being followed
string-useful to set simple traps, or in conjunction with fish hooks to catch a meal
fish hooks-if you are hungy and there is a stream nearby, also useful for pinning a scrap of colored cloth to the back of someones cloak if you want to flag them for some reason (following them in a crowded marketplace, etc)