Reddit mentions of Baladéo 34G Superlight Locking Knife w/Pocket Clip

Depends on what he likes. I'm almost out of my 20's but I've been trying to wear nicer things to work. This involves nicer shirts. So I need collar stays. They're a little expensive but way too badass if you can just whip one out and open something for someone. Part James Bond part Maxwell Smart. There are also companies that make plain (non tool) collar stays in exotic metals (tungsten, silver, titanium, gold, etc.)

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If he's into knives there's:

• This really light pocket folder.
  
• This credit card thing that folds into a knife.
  
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  If he's an outdoorsman, sometimes you need to cut things down, so here's a pocket chainsaw. There's always sweedish fire steel as well.
  
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  If he likes tools there are tones of things to get him like this hydrolic wrench.
  
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  Does he like some snacks?
  
  
• Slant shack jerky? Holy crap, maybe a giftcard. Build your own jerky is an awesome idea. Doesn't look like they do those.
  
• By that same token, then, maybe an Omaha Steaks giftcard. Have to be a bit high to make it effective. Probably not the best stocking stuffer then.
  
• Maybe some beer candy. Beer caramel and taffy sounds wonderful more me. I'm not into hops but if your son likes IPAs or other hoppy beers he may like them.
  
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  Okay, so I'm a dork, but you really can't go wrong with Think Geek, Uncrate, ThisIsWhyImBroke, or just browsing around on Amazon.
  
  All of the things that I have linked are really nice, unique, and a bit out of the ordinary. They're also all from my personal wishlist.
  
  Good luck
  
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  Edit: Slantshack does provide gift packs though... specifically a stocking stuffer.
  
  Edit #2: I stand corrected, slantshack does provide gift cards! GO HERE.

Bladeo 34 Gram

Yep. Amazon link here. Come in 15, 22, and 34 gram weights.

This looks like a ripoff of the Baladeo 22G and 34G knives.