This might be a dumb question but I was wondering if it's possible to change my early pin tier pledge to an early plushie tier pledge. I initially backed both the early bird pin (through the pledge level) and the early bird plushie (as an add-on). I did that because I wasn't sure which one I wanted. However, looking at the limited space I have left for enamel pins, now I realize I really want the plushie and not so much the pin.