Found some really strong clothes pegs made of rubber, and replaced all my plastic and wooden pegs with them. I bought them from Terry White Chemist. The brand name is 'primahome rubber grip pegs'. They are also sold on line at www.lasoo.com.au $3.00 for 16. They hang on tight in a strong wind, don't split in the hot FNQ climate, and don't rust. Good find.
If you go to a Produce store you can buy the peg used for electric fencing. The best clothes peg we have ever used. About $10 for 50, and they will last forever.