Fun Spoof badges from the Boy Scouts (but many of these can be used for girls too) that are much cheaper than the Disorderly Conduct Badges and Nerd Merit Badges. This is the famous Staples Easy Button.
Reptile and Amphibian Study. Boys always have been interested in snakes, turtles, lizards, and alligators, as well as frogs and salamanders. Developing knowledge about these captivating creatures leads to an appreciation for all native wildlife; understanding the life cycle of a reptile or amphibian and keeping one as a pet can be a good introduction to natural history; and knowing about venomous species can help Scouts to be prepared to help in case of an emergency.
Truck Transportation Merit Badge for Boy Scouts: A local trucking company offers Boy Scouts a skill center for the Truck Transportation merit badge every year. "Trucking is a large and important industry. No matter where you live, a day is unlikely to go by when you will not see a truck. We use these vehicles to deliver almost every material item we buy. Without trucks, our economy would not work efficiently."