Lucky Charms is a side quest in Dragon Age: Origins - Awakening. During the exploration of the Knotwood Hills, The Warden-Commander comes across a bag that contains Micah's Lucky Deer Foot. It's suggested that the Warden-Commander might have found some of Micah's and Colbert's belongings, including what appears to be a lucky charm, and that the previous owners might be grateful if the items were returned to them.
At the last wooden stairway down to the bottom of the chasm, turn around and look for the bag behind the ramp and under some stone pillars laying on the ground. Once the deer foot has been located, the quest begins.
Colbert and Micah can be found outside the city gates of Amaranthine; return the item to Micah to complete the quest.