Attack On Titan Stickers!
All of them can be purchased from my redbubble store, you can find the whole collection by clicking this link. All stickers besides the Colossal Titan are sold in two’s which includes an inverted version.
Special info on the Dancing Titan!
Since it has not been aired in the anime yet, the Dancing Titan sticker will be sold in greyscale. However, as soon as the episode featuring the Dancing Titan airs a colored version will go up replacing the greyscaled sticker. So make sure to grab one before it is replaced!