Perhaps you have a "Big Mouth Billy Bass," given to you circa 2001. If so, its limited repertoire has probably grown stale. As a Gadget Freak reader it probably crossed your mind to teach your "fish" to sing new songs, such as Monty Python's "Lumberjack Song." Well, you can give Big Mouth Billy Bass an ARM-powered brain transplant so it will play .wav files from an attached micro-SD card, and you can choreograph its movements to match.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.