doughnut chomp. This also works for apples instead of the typical bobbing for apples (which I think is gross). New set of apples/doughnuts for each group and the kid can have their doughnut/apple when done.
We used some old pillowcases for sack races in the backyard. We did several heats since the kids were much faster than I thought! We also played "musical pillows", which is just like musical chairs except you jump on a pillow when the music stops.