I Just released a pattern and Eyebrow mech pattern on my website if you are looking for something already made.. It's 49 and 10 shipping... Plus it will help you understand how it works so you can build your own for different patterns!
And if anyone has any Mechs they would like me to release in the future just let me know.. I'm looking to make as many available as I can with a dragon with flapping wings, a rabbit with moving ears.. A zombie with an eye that pops out and pulls back in.. A snarl mech and more eye blink and eyebrow mech designs to fit in different patterns.. It takes a lot of trial and error but I love it more than making the puppets themselves!