Here is a link to bulk micro balloons or (glass bubbles).
http://www.aircraftspruce.com/catalo...clickkey=10403
And one for a gallon size of the roof coating. Cheaper in 5 gallon sizes, but that is a ton of material. The roof coating can be tinted by the paint department, something you can't get with lizard skin.
http://www.lowes.com/pd_139937-29-55...oof&facetInfo=