A jar collector.
A numismatist is someone who collects coins and/or medals a numismatist
Someone who collects everything would be called a hoarder - this type of person may have OCD as well.
A Pencil Collector
The jars are called canopic jars.
they are jars that hold the organs when someone has been mummified
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.
Canopic Jars
The BFG collects dreams from Dream Country to distribute to children around the world. He also collects good dreams and bad dreams, which he captures in jars to prevent them from causing harm.
A person who collects shells is known as a conchologist.
Painted jars, called canopic jars.
A teddy bear collector! jk, i didn't know there was one. A person who collects teddy bears is called an Arctophile.
Someone who collects pens?