If you can get your hands on some Army camo netting, it works great!!

I covered an entire room ceiling with it and turned it into the enchanted forest (hung 'bugs' from it and had twinkling lights inside the netting for a firefly look)

Here it is in the daytime during my sons birthday party (and a Bucs game)


And at night (though with the flash). And my fake ficus in the pic

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