The genius behind the Pixel Waffle Maker is a 'no brainer' and I can't believe with the this wasn't thought of earlier... With the 9 x 9 grid is just asking to get the custom pixel treatment :)
Check out the below:
This customizable waffle iron allows you to create unique designs every time. Make a masterpiece by pushing in the dimples on the silicone tray to make your own pattern and locking it into place. Then pour the batter over the custom mold and enjoy!