ATF has traditionally been an agency of revenuers. They've collected taxes on alcohol and tobacco, as well as "firearms" under the National Firearms Act of 1934, America's first national gun control law. Over the last 70 years, "mission creep" resulting from laws such as the Gun Control Act of 1968 continued until, on January 24, 2003, the Alcohol and Tobacco Tax and Trade Bureau (TTB) was split off to perform much of ATF's original mission and "Explosives" was added to the end of ATF's name to further move ATF away from its original mission. That split occurred as a result of provisions of the Homeland Security Act of 2002.
If Congress had applied specific excise taxes to hammers and broccoli in the early 20th Century, we might well have a Bureau of Hammers and Broccoli in the U.S. Government today.
As another example, the British Parliament could well have established a Bureau of Lead, Paper, Glass, and Tea (LPGT) to implement the Townshend Acts of 1767. Of course, after December 16, 1773, that agency would have had to have been renamed the Bureau of Lead, Paper, and Glass (LPG) due to "mission creep" caused by a few unruly American patriots.