We're having a great time with Yo-yo using our daughter mini fishing pole and fish attachment. I think it brings out the real terrier in him. He stalks, jumps, and grabs the fish then chews it up. He does this with precision!
This is good to play inside but he runs quicker and jumps higher outside. Just be careful of the fishing line, they can get tangled in it pretty easily.
Here are some pictures of yo-yo...
http://img.photobucket.com/albums/v3...h/IMG_1592.jpg http://img.photobucket.com/albums/v3...h/IMG_1602.jpg http://img.photobucket.com/albums/v3...h/IMG_1601.jpg