Goukaku pencil
Here is a fascinating and mysterious pencil. Take a close look - it is a gold pentagonal pencil!
If this explanation has errors, please forgive me. Any errors are on my part.
Some Japanese-English vocabulary:
合格 - Goukaku - to pass an examination
五角 - Gokaku - pentagon
This pencil is thus a visual pun!
My sincere thanks to isu of the uncomfortable chair for this unique pencil and assistance in unravelling the hidden meaning!