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Make a music playing and LED reactive nightstand (no programming required)
Infinity Mirror Clock with Patterns, Date and Chime
DIY Cheap LED TV Backlight - A Layman's Version
Car Interior LED Lighting Multicolor
LiFePO4 battery for gasoline engine starting.
REUSE YOUR OLD LAPTOP BATTERY TO MAKE A POWER BANK
diy cheap asian style car underbody lights
Solar Powering My Home!
DIY Tough Bluetooth Boombox (Lasts 20hrs!)
Lithium Battery Solar USB/ iPhone/ Arduino Charger
Easy DIY Electric Motorcycle Conversion
Make an inexpensive Lithium-Ion Battery Pack
How to Make a Self Freezing Coca-Cola (Or Any Instant-Soda Slurpee)