I'm in Australia, and I recently had to go into hospital; I put 'Pastafarian' in thr 'religion' slot on the form, but my wristband was printed Rel: OTHER.
Next time I'll try Church of FSM (CoFSM) and see what they put!
I have a shrine in my room (a pirate ship children's tent with a model FSM made from big polystyrene balls and hair noodles) and I have a little pirate ship (bath toy) and FSM (made from little polystyrene balls and coloured pipe cleaners) attached to my mobility walker for everyone to see when I go out!
I also have pirate flags everywhere.
I'm sure you could retaliate by putting a copy of the FSM gospel in your
window. A religion does not have to be officially recognised anywhere for it to be a valid one for you!