Splitting 110V into 12V switch then into wall outlet?

I am trying to combine a 110V lamp, a 12V Horn, and a 12V led panel. I want to run each through their own 12V switches and then into the wall outlet. It this possible or what do I need to make it work? I have looked at some inverters and converters but am not sure what I need. Any idea how to do this?
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