You'll have to create a starburst at least once in your career...
Here's a way to add a little spice!
Make sure you choose a FILL COLOR and a STROKE COLOR.
With the STAR TOOL still selected, double click somewhere inside your star and a dialogue box will appear.
Set RADIUS 1 to 1 in and RADIUS 2 to 1.5 in. Set the POINTS to 9 and click OK.
In your STROKE PALETTE, choose a ROUND CAP and a ROUND JOIN. You can also adjust the weight of the stroke here.
Now you can use the BOUNDING BOX (change to the SELECTION TOOL) to stretch out the starburst or rotate it and change the fill and stroke colors according to your needs!
By playing around with the values you enter in the dialogue boxes you can create an endless array of starbursts and other interesting shapes!