I had this idea of combining leather bracelet with so called "friendship bracelet" a few years ago, and this model is the second, updated version of this design. This instructable is not very detailed but it contans everything you need to make your own bracelet like this.
I'm not going to show here how to braid a "friendship bracelet" because there's already enough tutorials on this on the interenet. I'm making a simplest pattern because this is what I'm capable of, and I'm using yarn scraps as a material. The lenght of the braided strip is has to be greater than the "window" in the bracelet body approx by a couple of centimetres.