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