Does anyone know where I can get yellow plastic floor cones?  I could do with a few to mark out heelwork patterns for training.   

try here

http://www.learningaboutdogs.com/shop/kits.html

You can generally buy them at obedience shows - although they are a variety of colours not necessarily yellow.

If you have a builders merchant near you, you may also be able to buy road cones from them and adapt them (or large coloured flower pots etc)

The best place to buy yellow cones is from safety manufacturers like Seton or Arco (see yellow pages or I expect they are on the net); I bought 10 for around £30; they were called sports cones and came in different colours and were not weighted and also had depressions in the top on which to place poles if you wanted to use them for agility/jump training etc.

HTH

Hi Everyone

Thanks for your suggestions, I'll follow up on all.

Hi Tohme

Couldn't find anything under Seton & Arco but whilst searching your other link  I found a sports equipment suppliers who had cones similar to those you described so ordered some and they've just arrived.  They are meant for football training but will do the job perfectly!  

Thanks

Suzie