I woke up this morning wondering why orange had been chosen as the color to represent awareness of the necessity to have sensible gun regulations. It might be time to change from orange to a stronger and more meaningful color, red, that might remind others of the blood shed through the use of firearms.
I think a great t-shirt could be produced that would be blunt enough to hit home, such as the one I propose here. Nice red words and red splatter against a flesh colored fabric. It may not be pretty, or nice, or polite, but I think it gets the message across.