Just got a tip about WikedLasers, a company that sells high power class 3b lasers that can pop balloons and generally make you look like a Jedi. They're a bit pricey, but for about $499.99 you can "scare away birds and animals," according to one testimonial.
They sell multiple models, including a $99 classic and the $1999.99 Spyder which works under water pumps out 300mW. Burninate!
Product Page [Wicked Lasers]