Virtual pets are fun, but sometimes they can be a virtual pain in the virtual backside.
The Mini Pet Cactus will love you unconditionally. The new Bio-Tech Blue Cactus is amazing. You don't have to do anything to care for it. It's sealed tight inside its bottle, resting in magic blue gel (which has all the nutrients the little dude needs to grow). Really - just add sun. Each cactus comes with a strap to attach to your jacket, cell phone, etc., so you can take it with you everywhere.

A pet cactus... How can you ever be bored now?? (via thinkgeek.com)

greatness, It is a plant that I cannot kill and that can live in my car.

An actual living cactus attached to your phone! Water soaks up through the bottom when necessary (every couple of months!). Fun!

this cellphone accessory actually contains a live cactus.... really. All you do is soak the dome every few months. A funny alternative to the cutesy mopod craze.

A plant you can always carry around you in your pocket. Watering is never needed because the key chain is its own mini ecosystem. Not quite as close as the portable galaxy from the movie, "Men in Black", but still cool enough to impress the ladies.