I've had several requests to make "Emotional Support"vests for bearded dragons through my Etsy shop, and I finally decided to just offer them as a standard item. CLICK HERE.
These are a very simple felt design so they are lightweight and inexpensive to make.
NOTE- a vest alone will NOT legally allow you to have a beardie (or any other animal) as an Emotional Support animal. It MUST be accompanied by a letter from a licensed doctor or psychologist stating you need one. There is a lot of grey area regarding Emotional Support animals right now as people are attaching themselves to more animals than just dogs. Read your local laws and consult with a doctor before you do anything please.