My mum bought the rabbits a harness each...... I tried them on them once out of interest but they didn't enjoy the experience! If anyone has rabbits who would wear them I will post them to you.
This is them, size large (I think, threw packaging away):
http://www.petplanet.co.uk/product.asp?dept_id=56&pf_id=6026
This is them, size large (I think, threw packaging away):
http://www.petplanet.co.uk/product.asp?dept_id=56&pf_id=6026