I'm sorry but a kickstarter for pins? Are you kidding me? The goals from the first kickstarter still haven't been fulfilled and you think you have enough people on site willing to shell out again? For pins?
I think merch isn't a bad idea but maybe try something cheaper so you don't have to risk a failing kickstarter. I'd suggest art prints (perhaps of monthly art?) or stickers or heck even pin buttons would be easier and cheaper. We could still eventually do pins but why start with such an expensive bit of merch? And also, just actually finish fulfilling the original kickstarter goals! Jeeze