Use metal arbors to make an awe-inspiring garden entrance. See 16 more stylish arbors: http://www.bhg.com/home-improvement/outdoor/pergola-arbor-trellis/arbor-ideas/?socsrc=bhgpin081212metalarbors#page=7
We've got abundant downed wood from our woods that can be repurposed into many wonderful things, such as fencing, garden posts, and something like this charming garden arbor. If you're using your arbor to grow and support grapevines, just be sure you bury your posts deep enough to bear the weight of the grown vines. Or just decorate it with lightweights like morning glories, clematis and nasturtium!