When popular US talk show host Oprah Winfrey joined Twitter on 17 April, live on her talk show, with assistance of Twitter chief executive Evan Williams, at least a million new users joined the fast-growing micro-blogging site. This post isn’t about her. It’s about two unusual Twitter users who communicate with the world only using the popular online communication tool.

I kicked Mommy!

Corey and Ellen Menscher developed a foetal kick detector that would alert Twitter each time the baby kicked when she was pregnant with Tyler. Now they are trying to sell the device, called Kickbee.

Thank you for watering me!

Botanicalls is a device that let plants let their owner know they are thirsty. The device uses a moisture detector which tweets whenever the soil dries us. The owner gets the tweet on his cell phone. The device will also let your plant thank you for taking care of it. You can see Pothos plant’s Twitter page.