Today's picture of a cool bug made from old computer parts is an example of a quick and easy method of photographing an object. Set it on and in front of a dark background, add some bounce flash off the ceiling, and away you go. In this case the flash is angled to kiss the background directly behind the object to add separation and preserve the focus of the picture on the bug.
You could also choose to do this on a white background instead of black, but I liked the way the black worked with the various metals and bits of machinery.
In some cases, you will want to exaggerate the size of your subject, as I did here. Low camera angles are a great way to accomplish this. Just be careful not to use such an extreme angle that the object gets out of proportion.
If you look closely in the foreground "eye," you can clearly see the reflection of the room behind the camera as well as the pop of the flash. There are many ways to avoid these reflections. In this case, I don't think it detracts from the overall look of the object. A great resource if you want to learn more about lighting and reflections is the wonderful book Light: Science and Magic: An Introduction to Photographic Lighting.
58mm - ISO 400
1/60s - f/5