Reddit mentions of Zebra Mini Ballpoint Pen 0.7 mm, Silver Body, Black Ink (T-3)

Clockwise from top left:

OLPR Leather Minimalist Wallet

Nite Ize Steel Key Rack with Molle velcro strap and key ring

Attached to it are my 64GB Toshiba Flash Drive, Gerber Shard and keys.

Zebra Mini T-3 that I clip in the spine of my wallet

Fisher Space Pen Bullet

Generic lighter

Field Notes but in the dot-graph version

Military issue Victorinox Bantam, couldn't find black online

Nicron B10 Rechargeable Flashlight

Gerber Dime

First ever pocket knife, the Tac-Force Spring Assisted Knife

iPhone 8 Plus

/r/pens

Zebra Mini T-3

I would suggest maybe checking out some of the smaller Zebra pens like the (Zebra Mini Ballpoint Pen T-3) (https://www.amazon.com/Zebra-Ballpoint-T-3-Black-Silver/dp/B0018RHUM0/ref=sr_1_1?ie=UTF8&qid=1499268851&sr=8-1&keywords=zebra+pens+small). It's more around 4 inches but it's a metal body and pretty slim. They're like $5 I think each, but can accept refills. Because it's thin it might be more comfortable clipped to your wallet.

Which dangler clip is that on the knife?

You might like the Zebra T-3 (or T-5 with gold clip). It's the same writing quality as the Zebra F-series pens but extremely small. Not comfortable for extended writing and obviously it doesn't hold as much ink, but I shill for it a lot on this sub since the F-701 is so popular.

They make really decent short and thin pens. And given this guy's tendencies, I tend to believe size is key point here.

EDIT: Oh no, see #29.

Zebra makes a small pen. I think the model is T3.

E: They look to be close to the size you want, but probably not at the price you want since you want a few of them.

Zebra T3 mini ballpoint pen, they also have a mechanical pencil like it.
http://www.amazon.com/gp/aw/d/B0018RHUM0/ref=mp_s_a_1_1?qid=1419101649&sr=8-1

http://www.amazon.com/gp/aw/d/B0018RF0IQ/ref=mp_s_a_1_1?qid=1419101690&sr=8-1

It's a tiny little zebra!

Here is the desktop version of your link

Ahh!! That's it! I used to get these all the time, Japanese stationary stores are really something else. My favorite was very small, but 5 stories tall, and had just about everything you can think of.

Amazon has the pen & pencil:
http://www.amazon.com/dp/B0018RF0IQ/
http://www.amazon.com/dp/B0018RHUM0/

Now I just need a justification to buy some. They feel like they most amazing portable pens to insert into moleskin type diaries.

A Fisher Space Pen, Mini-Sharpie and vintage brass bullet pencil in a small belt pouch. Or, a Zebra T3 and Zebra TS3 in my pocket kit.