Some of the interesting and original photography ideas include Time Lapse photos, Night Lights, Astrophotography, Macro photography as well as Micro photography. Other interesting and original photography ideas include Special Effects, Cinematic Portrait Effect, as well as Tilt Shifting Photography. Check more on speckyboy.com/2009/08/28/25-cool-digital-photography-tutorials-techniques-and-effects.
Black and white macro photography. Go outside on an early morning when the sun is coming up. Early morning light can be a beautiful warm orange. It may trigger your creativity. Same for sunset. Don't just shoot the sunrise or sunset, see how the light affects other items.
As my art teacher says "There is no such thing as a new idea" If you think it is a new idea just look a bit and you'll find someone who made a career out of that idea.
Just shoot what you like. Carry your camera around and just get shots of the world around you. You'll be pleasantly surprised by the things you get.
Also its just my opinion, but a lot of people seem to think that just because a picture is Black and White that automatically makes it artistic. These people are the ones that flood the world with garbage photos for grossly inflated prices.
Black and White is fine IF you take the time to make sure its a good picture and not just random shots. Take time to look and think about the shot you take.