WATCH: How to remove a ring stuck on a finger with dental floss

Everyone should know how to do this.

How to make vibrating alarm clock underwear

randofo says: "The Goodmorning Underwear are a pair of panties that vibrate to wake you up in the morning. This project is a continuation of my ongoing efforts to further the field of electronic underwear... This particular project came about because I finally wanted to make a garment that my girlfriend would actually want to wear. While it may be hard to believe, when I made the Clap Off Bra it was not really for her."

How to charge your phone with a 9-volt battery

The Crazy Russian Hacker makes a cell phone charger with a 9 volt battery. [via]

Best way to cut open a pomegranate

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Cigar Box Guitars: the ultimate DIY guide for makers and players

As one of the founders of MAKE magazine, I’ve made quite a few physical objects. Nothing has been more fun than making guitars out of cigar boxes. The amazing thing about them is that they aren’t difficult to build, are fairly fault-tolerant, and yet sound good! David Sutton’s book is a perfect introduction to the world of cigar box guitars. He gives a history of them, profiles makers and museum curators, and provides step-by-step instructions on making three different types of cigar box guitars (including how to make your own pickups to electrify your homemade instruments). There are color photos on every page. Cigar Box Guitars: The Ultimate DIY Guide for the Makers and Players of the Handmade Music Revolution by David Sutton

Take a look at other beautiful paper books at Wink. And sign up for the Wink newsletter to get all the reviews and photos delivered once a week.

Make this nifty indoor boomerang

From Futility Closet: a cool little paper boomerang.

Mathematician Yutaka Nishiyama of the Osaka University of Economics has designed a nifty paper boomerang that you can use indoors. A free PDF template (with instructions in 70 languages!) is here.

Hold it vertically, like a paper airplane, and throw it straight ahead at eye level, snapping your wrist as you release it. The greater the spin, the better the performance. It should travel 3-4 meters in a circle and return in 1-2 seconds. Catch it between your palms.

Intro to measuring tools

As Steve Hoefer’s uncle would say, “I cut it twice and it’s still too short.”

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Free video class: 12 cool parent-child projects with Jane and Mark

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My 11-year-old daughter Jane and I recorded a 2-day video workshop produced by CreativeLive. You can watch it today for free. We'll show you how to make 12 cool projects, ranging from electronic musical instruments to balloon videocameras.

Mid Century rocking chair project

Mid-Century Rocking ChairOliver Frantelle, from Paris, built this Mid Century rocking chair from the instructions in my book, Maker Dad. He says: "We had so much fun that I wanted to report. First, it looks real cool. Second, it’s comfortable and cozy. Third, it makes my neighbors jealous!" Im jealous, too, Oliver -- yours looks a lot better than the ones I built!

Friday fun: make a paradox card

paradox-cardThe amusement I get from looking at this weird-looking card is worth more than the 60 seconds it took me to make it. No tape, glue, or hidden cuts are needed. If you can't figure out how to make one, someone in the comments will show you how to do it.

Make a toothbrush bot -- fun and easy project for kids

The bristlebot is one of over a dozen how-to projects my daughter Jane and I taught people how to do. You can check out the rest of the parent-kid project videos here!

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Mark's "Kids Crafts with Maker Dad" video workshop today and tomorrow

stage

I snapped this photo of the CreativeLive stage where Jane and I will be teaching our "Kids Crafts with Maker Dad" class today and tomorrow. There's still time to RSVP for the free live video.

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Giant Bubbles - let me show you how to make them

Jane and I made this tutorial to show you how to easily make Giant Bubbles. We're going to run a free live video workshop with a dozen other fun grown-up-and-kid projects on August 4 and 5. You can RSVP for the workshop at CreativeLive. (If you live in the SF bay area and want to be an in-studio participant, apply here.)

Make your weekends more awesome with activities you and your kids can get their hands on. Join Make Magazine editor-in-chief Mark Frauenfelder — and his daughter Jane — for a class on cool, simple projects you can do with your kids.

In DIY Projects for Dads to Do with Kids, you’ll get the blueprints you need to complete projects with the whole family. You’ll learn how to whip up a mixture that makes enormous bubbles, and how to get started with polymer clay — a medium you can use to create custom toys, shapes, and figurines. You’ll engage in a little trial and error learning by creating your own simple board and dice games. You’ll also learn the more advanced magic of constructing a Drawbot – a simple robot that can make abstract art all by itself.

This course will have even your most reluctant kid excited to get their hands dirty and experimenting, making, and creating, together.

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Make a PiGRRL - Raspberry Pi Gameboy

From our friends at adafruit: "Celebrate the 20th anniversary of that classic gaming device by building your own with 3D printing and DIY electronics from adafruit. The 3D printed enclosure (files here) will house all the components and you can print it in your favorite color. Find out how to assemble and program this project by checking out the guide on the adafruit learning system.

Mystery cube-in-a-cube puzzle woodworking project

All you need to make this floating cube-in-a-cube is a cube of solid wood, a drill press, a forstner bit, and a sharp knife. I want to try this!