Don't pledge? Hand hecklers a card
How about a business card that you can hand to anyone who objects to your act of self-ownership?
I made them in PDF form, and for Avery template 8371 and I'll email the files to anyone who requests them. Later, I may add them to one of my websites for downloading, but I'll wait and see what people think.
As I do with most of my work, I offer this for free. Feel free to tip me for my work if you feel so inclined, because, as always, I could really use the money, but it is not necessary to do so if you'd like the files. Really.