Octagon by Semi Sweet
I've been a fan of Mike from Semi Sweet Designs pretty much since I started cookies. Not only am I obsessed with the color of his cutters (orange), but the quality and designs are outstanding!
The Octagon shape is so popular now! You can it in any set! This particular design was inspired by Borderland's Bakery
Check out Mike's website for a lot of great tutorials, cutters and supplies HERE