Just go to the closest river and swim around or just walk around the shore and find your own driftwood. I find my own in the same place the fish come from. Or if there's any wood in the pond where the fish are in then that would be better. I had some smallmouth for awhile until one beat the other to the PONR then he turned his attention on my sunfish so he had to go. I imagine with one temporary bass and sunfish there wouldn't be a lot problems if any. You could keep the sunfish long term and switch out bass as they get too big or aggressive