While finally buying a Keurig today, I (oddly) decided to do my research on my phone instead of desktop, and also (oddly) decided to go to Keurig.ca instead of my normal stomping ground of Amazon.ca. While there, I was distracted in a nerdy daze by the animation they added to their hamburger navigation, immediatly stoped everything and went to code it myself.
A very polished touch to a now very common element:
I used CSS3 var for easy line weight changing. Playing around with EASE also gives the button much more life. (It took two cups of coffee to write and refine that).