yes u can.
have a great trip!
Yup, you can bring an eyelash curler! (for now. haha)
Yeah, if you put it the container things they have, just leave it in your backpack or whatever. i'm sure if they let snowboards and guitars on as carry ons you can have an eyelash curler.
There's a little dish for your metal items so they can scan them separately. There shouldn't be a problem with you bringing an eyelash curler, regardless of what material it's made of (unless it's C4 or something) but if you don't want to risk it, why not just curl your eyebrows BEFORE going to the airport?