I believe in simplicity, so this Instructable is very simple and easy to change, improve and make more interesting and fun.
Step 1: Materials
Matches (quite a few)
Step 2: Masking Tape Base
Step 3: Adding Matches
Press matches down onto the tape, taking care to maintain an even height and spacing between each. The idea is that lighting the first match will light the second and so on, so don't make them more than two or three millimetres apart.
Place as many matches as you want.
Step 4: Securing
Place a strip of tape sticky side down over the matches, sandwiching them between the two tapes.
Now you can remove the lower tape from your work surface and tear off the extra tape.
Now we strengthen the base. This is a bit of a matter of taste. I usually wrap the bottom 3 or 4 times, just to give it some rigidity.
Step 5: Test! (and Test Again)
Step 6: Improve
Alternatively you can experiment with the heights of each match to make patterns. Just make sure they don't get too far apart or they won't light each other.