Hi,
I got the (cat! :lol: ) carrier from petplanet.co.uk for £23.99:
http://www.petplanet.co.uk/dept.asp?dept_id=39
They seem to quite like it as an outdoor hide - just not when I shut them in it! :?
It is good though... opens front or top and has 2 small food/water bowls to attach on the door that can be removed and refilled without opening the carrier
I think out of all the toys they like the tunnels and anything that will disperse food best! :lol: