Materials:
Worsted weight yarn
MC blue 1-2 skein(s) ~200 yards
CC1 dr gray scrap
CC2 white scrap
CC3 black scrap
Crochet hook I (5.5 mm) for small and large
Crochet hook G (4.5 mm) for medium
Straight pins
Tapestry needle

A great pattern for using up your stash.