Just ordered one of these for the cats, this should provide hours of entertainment. My aunt has one of these for her cats it seems to provide alot of entertainment. With the opening in the top of the track it allows the cats to try and catch the ball as it moves. You can buy other tracks to add to this product. Product is sold through Pet Fayre but fulfilled by Amazon so free super saver delivery included. Much cheaper than pets at home.
Pets at home - £14.99 plus £2.95 deliveryhttp://www.amazon.co.uk/gp/offer-listing/B001LWRFW2/ref=dp_olp_new?ie=UTF8&condition=new