I got yer fabric right heer, buddy:
You’re seeing this message because some of your behavior on the site looked a little odd. To continue on through the site, help us verify that you’re a real person.
www.joann.com
Some people use magnets, but you'll be much better off with redundant attachment methods. For my master chief build I used a combination of velcro and sew-on snaps, both if which you can pick up pretty cheap. If you only have one method, i.e., magnets, you run the risk of it failing.