Mechanical pencils of Mark's Tokyo Edge, Japan have wood shaft with French "tous les jours mes stylos," which means "my everyday pen" on.
Each side of the pencil has activity of life for each days of the week.
For example: "Watch a movie" for Monday,
"Listen a CD" for Tuesday,
"Read a novel" for Wednesday,
"Write a poem" for Thursday,
"Book a ticket" for Friday,
"Have a small trip" for Saturday and Sunday.

Why not choose one of your favorite color pencils and give it a roll on a boring day to find some fun for yourself? This pencil will certainly gives good mood every day.