Great idea! Fill it up with worthless tokens and return it. I am doing that.
Nah, a letter.
Dear _____
I'm sending you a donation consisting of what I have left after paying my living expenses and my 57% federal, state and local tax rates. I've also deducted all taxes and fees assessed because of Obamacare. Please accept this small donation as a representation for how well I feel you're looking after the interests of this nation's people.
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....and send them NOTHING.