In reply to La Puce ) who wrote this in
, I, Marvo, say :

Janet Tweedy wrote:
Where can you get those little black ball things with holes in, you
can build temporary netting structures with them by making a cage
out of canes and use the balls to connect the canes together. Tried
all year to find them. Must be putting in wrong description into
search engine.

What ... did you enter 'little black ball things with holes in' in the
search engine? Here's the first entry for 'cabbage netting' ...

http://www.fothergills.co.uk/en/garden-accessory.aspx

Indeed ...

http://www.fothergills.co.uk/en/build-a-ball-5814.aspx

As opposed to http://www.docsmachine.com/nonPB/mortar02.jpg , which is the
best you get for little black ball things with holes in. Mind you, it looks
a good option, although a bit overkill just for caterpillars.