Gold from NPC's other than those in Heartwood. The most I have received is 20 gp. NOTE: After this reply, I raised my karma, and the largest amount of gold I have received is now 26gp.
Heartwood Items taken from the
Beggar FAQs, all tagged with 'Acquired By Begging':
Pitcher of water, 2 directions
French Bread
Pitcher of Liquor, 2 directions
Bunch of Dates
Cheese Pizza
Bowl of Stew
Lantern
Piece of Cheese
Shirt
Bedroll
Pitcher of Wine, 2 directions
Flower Garland
Fishing Pole
Bottle of Wine
Plate of Cookies
Fish Steak
Sake
Turnip
Artifact Recipes (Not actually reported as recived, MrTact just said it was possible)
I have received multiples of all items except the Fish Steak, Sake and Recipes ... I have yet to receive any of these three. (I have made a pitcher of Sake by emptying a pitcher of water then refilling it at the Sake Pond.)