This shower of sparks comes from a grinder sharpening a lawn mower blade. Canon 40D, 1/2 second at f/10.0, ISO 200, 40mm focal length, mounted on a tripod and the shutter fired with the camera's countdown timer.
Votive candles are small candles, originally intended to be burnt as a votive offering in a religious ceremony. This crystal votive holder was on our restaurant table where they have now become commonplace. Canon G10, ISO 200, 1/13sec at f/3.5, 22mm equivalent focal length in macro mode. Fired using the self timer to avoid camera shake.