Doggy defence...

Another idea @Fat Controller could be to construct a barrier with some recycled pallets, joined and cut to your preferred height and width. You could paint them the same colour as your containers and attach some castors (lockable ones) to make access easy (for you!). This, of course, assumes that your DIY skills are better than mine .

 

I sympathise with you Fc
I don't know if this would work for you as it did for me, by accident
Our fence was quite plain so I brightened it up by adding wind chimes. I had pots along the fence like yourself.

I had the same problem with my four rescue dogs ( around Ten years ago.)
Little did I know the dogs didn't like them.so instead of jumping on the pots they would stand barking at these.adding there bit .........for some reason it got very noisy though it did keep them off the pots

 

I think it was more that they could see them moving as where we are the only people they see are dog walkers and the horses in the livery .