I found a new attachment for the Da bird last night - a brown paper bag. I made a hole in the bag and put the da bird attachment through it, then ripped the bag a bit. They could just see the feathers as it flapped around. Both my boys went mad for it. Played for about 45 minutes, taking turns to get their breathe back.
My boys don't like a lot of toys either but they love the Da bird and da mouse.