There is a lot of video showing sign ideas you could adapt for your own MI repuke assholes. Musical instruments, vuvuzelas, anything that can be used to make obnoxious racket. I and many others banged on simple and cheap 5 gallon buckets. Dress warmly as the fight will be long. Bring snacks and share with others if you are in such a position to be able to.
Very important: search out eateries nearby that are on our side of the cause. I mention this because one of my endearing memories of the WI protests was the way a local pizzeria would deliver pizzas by the dozens to the hungry and weary protestors. The pizzas were donated by people all over the world who could not physically be there but wanted to support the fight. A win for all, the hungry protestors got an energy boost from the food and support, the local progressive owned business got a major economic boost, and those not able to be there could feel good about supporting the cause. When you find a good business to recommend, post up their contact info as I'm sure many will want to help out.
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