Multiple ID Badges and RFID Badges - All-in one concept

The idea for me was to be able to have on the same item all my RFDI badges I use on a single day
- The parking badge (RFID)
- The gym card (non RFID)
- The FELFEL fridge RFID badge (a sandwich fridge that you can open with a RFID badge and you can pay with, some people have the same kind of badge to pay at their cantine or other…)
- My company badge with picture and ID (RFID)

The challenge is to have all of these in one single design and be able to use them to open the doors by RFID.
The problem is that all when stacking all these back to back their RFID signals gets mixed in and none are working.
So I made it in a way that they can't interfere when using.

The one on the top is for my company badge I simply have to move it to open the door
Same for the one at the bottom for the parking card
The RFID badge is at the end of the badge and can be used without interference also.

It is a very specific problem I tried to solve and it works for me so I thought of sharing, never know:)

For a cleaner look the cutout for the RFID badge is separate and needs to be glued, I have included holes and guides for perfect alignment while gluing.

No support required for the card slides. Printed in PLA on my side.

Let me know if you have any improvement ideas.