The prompt was to create a Chindogu. Chindōgu is the Japanese art of creating “unuseless” inventions—ingenious, often humorous gadgets designed to solve everyday, minor problems, but which are ultimately too impractical or embarrassing to use.I designed a multi pen holder that is just useful enough to not be viable for everyday use. The Pentry is a arm-attached tool that holds pens for easy access for specially-abled and one handed applications. This device holds your pen caps in a triangular clip for easy application and resists accidental removal. As you pull your pen out, the cap stays behind in the mount, ready to hold the pen again.