POTUS is going on a bus tour. Everywhere he goes, folks should hold up signs showing an AK-47, with messages about "200 murdered by ATF guns, where is the media?"
That's just clip art I grabbed, obveiously, delete the Russian.
To be even more effective, cut out the cardboard AK-47 alone, and hoist it high up on a stick, so its profile will really stand out against the sky. Just make it properly "cartoonish" so the Secret Service can't pretend they thought it was a real gun. Sort of like the cartoon AK in the following image.
We should dog POTUS with Fast and Furious at every stop, shaming the MSM into finally reporting the scandal that is a thousand times worse than Watergate.