There will be extra pins available online, however I expect the more popular designs will not have many leftover. I don't plan on restocking them anytime soon and will only be ordering a little more of each design than is pre-ordered on Kickstarter.
So if you really want certain pins, please pledge now to avoid disappointment!
Any "unlocked" designs which have met their goal of funding are available as rewards for any pin tiers. There are currently 24 unlocked designs to choose from. Once you have backed a reward tier, you will be able to choose any design as your reward after the campaign has ended and surveys have been sent out.
Yes! At the time of making the campaign, only the set of nine pins were available to choose from. Now that there are stretch goals being funded, you may choose any pin designs for your nine pin rewards.
Unfortunately the Early Bird Full Set tier is a special price. You can upgrade to a higher pledge for more pins, but it will be a little more expensive as the Early Bird tier is a special limited price for the first 10 backers who pledged for it.