The Wiccan Atlar should have a few very basic elements, arranged loosely as shown above. The Goddess/God figure are optional, but they do make the altar more uniquely your own. They can be anything you like; anything that reminds you of your own Dieties.

The candles should change with the seasons and/or Sabbat. Or, they can be more explicitly representing Goddess/God by choosing Silver and gold candles: Silver for Goddess, Gold for God. That is how my altar is set up, simply because it is the way I learned from Francesca DeGrandes, in her book, Be A Goddess. I put a single candle to represent the season/Sabbat in the middle of my altar.

The Pentagram should be the centerpiece of the altar. It represents the Earth, from which all our powers flow. I have been told by a reliable source, that if the ritual is done outside, the pentagram is not neccessary since it stands for the Earth.

The cauldron is a Goddess symbol (receptive). The athame (ritual knife) is a God symbol (penetrating).

Look around your home. See what you can find that speaks to you in a certain way and that might dress up your altar. Then decide if it is a Goddess symbol or God symbol and put it on the appropriate side of you altar. If it is neither, but you want it on your altar anyway, stick it in the middle somewhere. Some flowers are always a nice touch. The most important thing about the altar is this: Is is YOURS! You can fix it up anyway you like. It must speak to you.