I bought these metal brads from Oriental Trading Co. and discovered that if you cut the brad part off, you can glue the corners to your cards just like the real metal corners! The advantage is, all you need is glue dots to adhere them! And they're cheap!
Check out all the other fun brads they have! OH SUCH CANDY!
Stamps are by Inky Antics, polka dot paper by Bo Bunny (Heart throb stripe reverse side), green/blue paper is My Mind's Eye Magnolia, and the blue floral paper is unknown.
Thanks Bevie for the great inky images!
Here are the brads from OTC: