What to do with police barricades?

Right now people on the streets are acquiring materials like this. 

Cops are putting up barricades and people are taking them down. How awesome would it be to re-purpose these into useful objects? I love the idea of taking something intended to restrict our freedom and using it to support our freedom instead.   Here are some potential uses off the top of my head:

• The saw-horse style barricades can be used to support tarps for a sleeping shelter
• Two saw horses can be used to hold up a work table. I could see a half dozen being made into a workable kitchen counter.
• You can also make benches, as the creative gentlemen to the left here demonstrate.
• Gardening. Use the sawhorses to hold the clear plastic for cold-frames. Use the metal barricades as trellises for tomato plants. 
• The metal barricades could be used as the frame for a bed. Cut one in half to use as the head board and foot board.
• Use the frames as support to hold protest signs. Stretch canvas over the frame and make your own billboards.
• The top part of the sawhorse is just a board. Dozens could be used to frame any kind of structure you want. 

And I'm sure that a thousand other uses will present themselves. We're taking them down anyway, why should material go to waste? Lets re-purpose the tools of oppression into the support structure of freedom.