Spacers for mounting Lights?

I'm trying to install a pair of KC HILITES 6" Pro Sport Gravity LED Driving Lights on my Tundra and I am having a clearance issue due to the depth of the light casings. I need to add about an inch of space below the lights to make the install work. Do you make or can you suggest spacers I can use between the light bar and the lights to mount them? I am thinking rubber or metal bushings with extended bolts will give me the clearance and I am sure I'm not the first person to run into this but I can't find anything online or in your KB with suggestions. Thanks