We’ve added four new wallet concepts to round out our selection of duct-tape-based money-carrying apparatuses.

Duct Tape Hybrid Vault Wallet $18
If you’re the type who hates a pocket full of loose change and receipts then you’ll love the design of this wallet. Featuring the duct tape + PVC design of the Duct Tape Hybrid BiFold Wallet, it adds the useful feature of an internal zippered pocket for change, a separated currency compartment (also useful to stash receipts) and an edgy, decorative patch on the front to set it apart from other wallets.

Duct Tape Hybrid Change Purse Wallet $18
Girls who own any of our duct tape purses can now have the perfect wallet. This hybrid wallet features a snap-closed change purse frame on one side and a traditional wallet with credit card slots on the other, accommodating your needs.

Duct Tape Hybrid Zip Wallet $25
If you’ve got pack rat tendencies and a ton of credit cards then this is the perfect wallet for you. The zippered part lets you stash receipts, notes or checks without being worried they’d slip out and disappear forever.

Leather Duct Tape Wallet $22
So, if you’re not ready to make the leap to a fully duct-tape constructed wallet you’ve got a compromise in this Leather Duct Tape Wallet. It’s fully made of leather with a real duct tape ID holder that slides out of a pocket on the front that also provides a unique design element with its cutout corner.

Here is a cool talk we found on TED about our favorite subject, fractals (of course!). Ron Eglash noticed Julia set patterns in they way villages were laid out while flying over Africa and it spurred his interest to investigate what was going on. Specifically, he talks about his research on the intriguing fractal patterns he noticed in African villages across the continent. He talks about his work exploring the rigorous fractal math underpinning African architecture, art and even hair braiding.

If you loved our original Smiley Necklaces but hoped for a more affordable version, you’re finally in luck. Check out these Mini Smiley Necklaces that are just 1cm in diameter and only $38. Instead of a chain like the original they have a thin velvet cord that comes in black, java, denim, or plum as well, and are available in either or .

If you’ve already got either version of the Smiley Necklaces, our sterling silver Smiley Earrings at $68 make the perfect accompaniment. Also at just 1cm in diameter you can choose from “Wink” or “Smile” to dangle from your earlobes. Both come in a cute little gift box.

Got a guy on your gift list who’s got every gadget you can think of, and you’re not sure where to turn? Check out our suggestions for great geeky yet stylish gifts.

< Odin’s Rage Watch – $120.00
This futuristic watch has a novel way for displaying the time. You know how you’re expected to recall the position of numbers on a watch with a blank face? Well this watch operates on the same principle, but substitute a large inner dot for the hour hand position and a small outer dot for the minute hand position. Cool huh?

High Voltage Laptop Bag – $65.00 >
Watch yourself! Any guy who’s dreamed of having superpowers can indulge his fantasy just the slightest by suggesting that his mega gadget fascination has made him electrically charged himself. The army-green laptop bag has a padded laptop sleeve a roomy interior, and pockets under the flap to store a variety of other electron-pushing gear.

< Electronic Musician’s Emergency Adapters – $65.00
Even if the gift-recipient in question isn’t an electronic musician, he’ll be just as overjoyed to sift through this “first aid kit” and know he’ll be the hero when an audio emergency strikes. It has common audio adapters as well as ones used in professional audio situations, and there’s even an LED light to make following cables around in the dark much easier.

< Duct Tape Hybrid BiFold Wallet – $25.00
Raw industrial style meets clean minimal design with a touch of futuristic aspiration in this wallet made from real duct tape. It’s made from a specially-designed duct tape that won’t lift, peel or get sticky like the normal stuff, so your man won’t have to worry about trying to delicately detach a fifty at the cashier while the line of impatient shoppers behind him grows.

MIDI Cuff 1″ – $40.00 >
Get your geeky rockstar boy one or two of these cool cuffs made of four sequential black MIDI cable segments arranged in rows to form 1″ cuffs. On a few of the strands you can read a segment of the phrase “VTG Audio Low Noise Quad Balanced Cable. Made in the USA.” Perfect whether he’s a world-class electronic musician or could simply pass for one.

Microcontroller Cufflinks – Rectangular – $40.00 >
If your boy isn’t into our green circuit board cufflinks then make him rock these instead. Classy and subtly nerdy at the same time, these swank cufflinks are made from two matching black microcontrollers.

< Testosterone Keychain – $22.00
Quite possibly the “manliest keychain ever,” this pewter keychain cast in the form of the testosterone molecule is the perfect thing to adorn your guy’s keys, especially if they’re for a sportscar (appropriate, right?). And it sort of even looks like small brass knuckles–totally tough!

Hex Standoff Necklace – $12.00 >
If the guy you’re gift-shopping for is stylish with a streak of geek, this subtle aluminum-and-black necklace will be his new favorite accessory. The horizontal “pendant” is actually a hex standoff, a bit of hardware commonly used to connect circuit boards to their cases or each other.