Sofiane and I spent several days to design the bracelet which will used to support our card, on the site Tinkercard. We had to take all the measures first, and then start to create the box. 

We formed the box so that there is a hole to put a fabric strap, and a second hole to pass a cable that will reach the button on the movuino inside of the box. 

That is a screen of the box and its lid when we designed it on the site :

On the lid, we wrote the name Simillitude which corresponds to the name of our project.