Colorful iphone case

Some time ago, I got a request for a colorful iphone case. So, I started my search through the yarn stash untill I found something satisfying.
The result: 'Mille Colori' from Lang yarns. Colourful enough, don't you think?

I don't have an iphone or anything that resembles it, so I looked up the dimensions online and based my case on that. When it was high enough for the phone to comfortably fit in, I made 12 holes so I could lace a small ribbon through. I started on one side and laced the ribbon through all of the holes, cut it and tied the ends together. Then I started on the other side and did the same thing. Now, if you pull both ends, the case closes.

If you want to use this method to close a case or something, always make sure you have an even number of holes, otherwise it won't come out right.