OH discovered a new game with cat tunnel we got at Supreme. Just lift slowly about 2 feet off ground and wait for pud to jump in.
I have now developed this to raising to about 2 and 1/2 feet off ground, wait for Ruby to jump in; then Millie jumps in and swing tunnel from side to side as quick as you like; hold by squashed top of tunnel and swirl around; pretend to let it drop
Just like a kitten fair ground ride. They just love it to bits. Just need to ensure they haven't just eaten