Well, since I have 3 Forums of my own, I may make a suggestion. In the part of the Forum where the icons are that are actually the on and off icons, you could change them to look like guns, I have a couple for you to look at.
This is how they look now..

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Now Granted, these will have to be done in HTML codes or as on my forum I can just upload the new pic i want to replace it and name it exactly as the original icon.
Here is a couple ideas I been working on.
For the On icon

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For the Off Icon..

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One last thing, the icon you will replace it with will have to be in the same size as the original as it is not here...