Supports for determinate tomatoes in pots

I built some compost bins out of stock fencing and chicken wire recently. Much prefer the stock wire, chicken wire catches on everything and leaves you with scratches.

What I did with the stock fencing to make cages is snip the required length off (circumference of the pot minus a bit so it fits in) leaving one end with open ends, then used some pliers to fold a bit of the ends in to a U shape so that it can latch on to the non-open ends.

Uhhh...that sounds confusing so I have provided an artist's impression...