For those curious about available speeds, my character Lumiere here has offered to show off his blinking skills.
Welcome, Lumiere, show us what ferffles can do.
"Sure, here's 'Normal' speed, the most popular choice. The open eye frame is set anywhere from 1500 to 1800 milliseconds."

Excellent, this is the most natural look, and I try to make the open eye time a little different for every single ferffle I do. What else can you do Lumiere?
"Let me go through what i currently know...
That was normal, and this one is called 'Often'...... It's just like normal, but the frame is set to around 500 ms.

When I blink 'Fast' (I think the light's too bright in here) the frame is set to a measly 200 ms.

*Sigh*, I don't even know why we have this one, but it's called 'Heart Attack'

And here's my favorite, we call this one 'Flutter', and it's a big hit with the ladies."

Come on silly, it's not that popular. But thank you for showing off, I know how much you enjoy the spotlight.
*Takes a bow*
Yes, well, let's get back to all of you guys. These are just easily set choices, but I can mix and match it. Normal is the easiest for me, but I can mix and match all the others. For example, if you want your ferffle to blink often, and flutter 5 times, just let me know!