Concrete garden ornaments can be spendy. Even worse is the fact that they never have the perfect thing that you are looking for.
This tutorial over at Instructables has all sorts of suggestions for fun with concrete. The author teaches you how to make fun bowls, candle holders, and more. They also teach you about the best way to make lasting concrete artwork by giving the concrete time to set properly by keeping it moist, and how to sand and seal it for a smooth and finished appearance.
They suggest using a bowl called a bubble bowl for the perfect outdoor bowl (see the picture with the frog) or pet bowl, how to use a votive candle holder to make a gorgeous candle holder of your own.
There is just so much information packed into this article, as well as the author urging something we also urge of our readers: use your imagination. Look around and find what you would like to make, then make it. You are really only limited by your own imagination and your ability to shop flea markets, second hand shops and garage sales.