As Tulsa said...
Create a new symbol, give it a button's behavior.
Design your graphic wrapping, basicly the same on up, over and down states, and a fill rectangle roughly the size of your desing on the hit state.
Make sure it will cover your below graphic.
Create another new symbol, give a movie clip's behavior.
Drag your button (from the library) in this movie clip. Set the action of the button (right click on the button) somewhat as follows:
on (press) {
setProperty ("/pop", _visible, "0"

;
}
Now go to the main movie (scene1), design your gum and from the library, drag the above movie clip (the wrapper movie clip) over your gum. Name this instance pop, or the name you used in the above button's actionscript.
You're done! Test the movie!
A press on the wrapping should make it dissapear!
;-)
Going out for supper... Hope you can make it through!
Will check in... but much later!