Grapes that grow wild in my yard were saved from the birds by picking them while they were still a little tart. The jam made from them was so delicious, I'm counting the days till I get to steal this year's harvest from the birds!
Homemade raisins from my own grape tree! They are smaller than the raisins you buy in a store, which is nicer in some ways because their sweetness comes in little bursts. These would be really great in muffins or cookies, etc.