Collectible NaNoWriMo Stickers: What are they and where can you get them?

If you're new to NaNoWriMo or if you've only ever participated online and haven't gone to the in-person events, you've missed out on one of the coolest National Novel Writing Month traditions. Collectible stickers!

Every year, NaNoWriMo puts out a new set of awesome stickers. These are a hot commodity and having a set from every year you've participated is a matter of pride for many participants.

This year, there are four different designs (there were only two last year which will make it that ...