Step 2: Mix ingredients with water and make into a ball.
The ball should have no cracks. This part is very important. Add just a couple drops at a time until the cracks disappear.
The guar gum should feel a little slimy. If the sandalwood is not holding together well, add more guar 1/4 tsp at a time until the ball sticks together.
Once you have enough water, try rolling a test cone with your fingers by just pinching a little off and forming it into a cone, standard incense size. If it holds the shape well without slumping, you are ready. If it cracks when forming, add a teensy bit more water and try again.
When the test cone holds together, you are ready to start extruding sticks. (You can also make the dough into cones if you'd rather.)