AULUMU wallet model adapted

I was checking on magsafe wallet when I saw this:

https://aulumu.com/products/g03-multi-tool-magnetic-metal-wallet-genuine-leather-cover-magsafe

I mean... OMG what a beautiful wallet! But the problem is... I can't afford it. Well... I sorta can, but taxes make it twice the price. So... I can't spend that much on it.
Because I wanted a elastic type wallet, I've decided to use Plasticity and make it one for me... but with a few changes.

The stand and bottle opener isn't exactly going to be awesome, so I've decided to remove them. I've kept the pin, which is 30mm x 1.8mm. You can use a watch pin, easy to purchase. The problem is... I can't find a decent poliester elastic strap... So I got a velcro elastic on Daiso. It is bulky, but keeps the functionality. Keep in mind that you can't have double layers, because the elastic won't extend the same way for each layer, making it pretty much impossible to use as intended.
Another thing is the side rubber. I adapted to use any kind of rubber,