You can braid into rebar.
this is just ordinary rebar but looks really interesting like this
Bug hotel made from bricks and bamboo - © Lee Avison/GAP Photos Bug hotel. Insect home.
30+ DIY Trellis Ideas for Your Beautiful Garden
This is an adorable idea for the climbing plants!
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Make your own stunning planter using stones and cement.
National Home Gardening Club: Driftwood Christmas Tree - Photo and design courtesy of: Susi from Vorarlberg, Austria.
post of bundled sticks/flat rock and round rock, love it