DIY ECG Electrocardiograph kit
Not bad for $44 – lots of project to make with this – “We have found many different uses for this little kit! Applications ranging from the traditional ECG/EKG monitor to the ‘Newly-Wed’ Love Synchronizer! One of the main reasons we designed the ECG1 was to answer a long running debate here at the shop. We wired up the ‘Boss’ and finally confirmed he does not have a heart! Use the ECG1 to astound your physician with your knowledge of ECG/EKG systems. Enjoy learning about the inner workings of the heart while at the same time covering the stage-by-stage electronic circuit theory used in the kit to monitor it.” Link.
Mr Joshua writes “Here’s a video Tutorial from PYRO1234321 on how to make home made lock picks.” This is a great in-depth guide running 25 minutes. Also check out other lock-picking related videos submitted by 
Not a bad deal for $49. “MIDISpeak Module – Version 2, The Talking Toy MIDI RetrofitAdds a standard MIDI IN port to your Speak & Spell, Speak & Read, or Speak & Math. Non-English versions also supported. Trigger thousands of sounds–words, word fragments, garbled speech, percussion and bizarre sound effects.” 
William on GoRobotics writes “The popular educational and hobbiest company, Parallax is finally 
Matt writes “This stuff looks pretty incredible. To me the finished product looks a bit like an adobe building. It should greatly increase affordable housing in areas where it would have previously been too expensive.” Grancrete is a spray-on structural cement and here’s an overview of the Grancrete rapid construction process…” 
Griffin has a nice new product hack, they tapped the USB on the iPod Shuffle and it’s now both the lanyard and headphones in one – nice work “TuneBuds keep both the earbuds and shuffle handy around the wearer’s neck. Just snap TuneBuds onto the shuffle’s USB connector, and you’re up and running (or dancing). TuneBuds’ audio cable, integrated into the lanyard, keeps you free of excess cords and tangled lines.” 
These Stanley wristwatches from Japan have different tools built in each watch – flashlight, hex wrench, screwdriver, measuring tape, telescoping rule and a mini-vice. I’m not sure I’d wear most of these, but the one with the measuring tape looks really handy. I wonder if it could store height / width and depth quickly via some memory function.