A button collector??
I believe it;s a "Patron".
The Goblins Know someone is at the gate because they see bilbos shadow and believe that someone is there. And when Bilbo goes to get threw the gate his brass buttons pop off.
synesthete
Triathlete
movie pirates
a button collector
onithbfdbvb
A catapultist.
I would call him a hobbyist.
dumb
normally .you call one .a letterologist.
a hoarder x)
Graphologist comes to mind or autograph hunter.
Someone with too much time on their hands and too much space?
An aquarist is someone who collects fish in aquariums. They can also simply be called fish keepers. Some collect a variety of fish, while others specialize in a few kinds.
An Arctophile.
whatv do you call the manor woman who collects fares on bus