I used little black eyelets on my layout, combined with some baker's twine, to lace up a paper tear.
I've taken a blah shopping bag and turned it into an "oh la la" accessory!
The big brother of eyelets are grommets.
They played a big part in the transformation. There's a how to on my blog.
I still love my eyelets, and I made a mini album with a different way for using them on every page.
I don't use eyelets near as often as I should, especially since I have sooo many :) I love using them to attach twine to large spaces on my cards. It just gives it a little bit more polish than wrapping it around the card.