I have been making these sort of teepee trellises for my cherry tomato plants. I make a ceramic bird, picture on the right, with a hole in the bottom large enough to accommodate four bamboo poles . I push the poles in the ground equally spaced, gather up the tops and put the ends inside the bird. The bird then holds the whole trellis in place, picture on the left. So far they have been working out pretty well and have held up thru a couple windy thunderstorms. As the tomatoes grow and I twine up the trellises, they get stronger. I have also used this method for cucumbers and peas and beans with success. I used larger poles for the cucumbers as they can be heavy. Also it has worked in well with my fascination for making ceramic birds, a new reason to make more. They look lovely in the garden and are very functional, cannot ask for more than that.