Does anyone know where one can get really good quality catnip toys in the UK? In the past I've ordered them from the US, because the standard petshop ones are feeble by comparison, but I'd prefer to buy more locally

This is the supplier I currently use, based in Portland, Oregon - it's a small business run by a couple who grow their own organic catnip and then make it in to safe sturdy toys that drive kitties wild! Mine still play with one of the mice which I bought four years ago, so I can vouch for their durability:

Kitty Hooch Catnip

After a brand-new one of these, my late half-Bengal was so stoned, she could barely walk straight