I am planning to create two trellises (8' high by 3' wide) in the shape of trees or large shrubs out of rebar and I need some info on bending and cutting rebar and how to anchor it to the ground. Currently I plan on using large coffee cans filled with concrete and inserting about 6 strands of rebar, cut to various lenths using a circular saw with an abrasive metal cutting blade. Once the concrete cures I will bury it 2' in the ground and use a manual rebar bender, basically a pole with three pegs at one end, to create the tree/shrub effect. Star Jasmine will then, hopefully, climb up these structures and provide fragrance, screening, and shade. Am I whacked? Am I biting off more than I can chew? Am I creating a safety hazard? Please advise.