I bought the phaser on ebay for 10.00 U.S. dollars. Then I bought a high mw green laser and placed it in the prop. Now it pops balloons.
Step 1: The Laser
It is commonly known as the New Wish laser from Deal Extreme. A similar laser can be found at Radio Shack.
Mine was niether of the two brands because I bought it in Asia but usually they just rebrand the same lasers that come from china.
-Well thats what most people say:)