I have been recommending these:
http://www.amazon.co.uk/Boredom-Brea.../dp/B0026RKH12
to everyone as they were amazing for sorting out Bear's overgrown teeth.
They are £5.99 in P@H but for anyone in Essex I found them at The Factory Shop in Basildon for
£3.99 today so have bought one each for Dinah and Magic. The Factory Shop is a small chain with branches throughout South Essex.
Dinah seems to like hers: