Ball of String

This is a lost artifact, known only through ancient stories of long-deceased ancestors, and has not been discovered in Ur. This ball of string - which appears to be a spun mixture of long blonde hair and patch-weeds - was discovered by Birdie and Swift when they were on one of their major childhood explorations of the North/South-Western coastline. Thinner than any string they’d ever seen, and stronger, the ball is now very depleted, much of it having been used for tough yet lightweight travel socks.