Originally Posted by PoorSignal
sure the holes are very small with the thumb tacks, I am just afraid they will fall onto my black shag carpet and won't be able to see them!
do they really stay put even in earthquake zone in California?
I use them to secure Plastic when I tent a room when spaying screens, and they hold up to both the displaced air from the Sprayer, and the wind generated by my using a large Fan to help drying.
I'm pretty dang sure that in any Earthquake strong enough to shake Thumb Tacks out of a Drywall Ceiling, that are holding up lightweight Velvet Cloth, your going to be cleaning up enough other things that a few Tacks will be the least of your concern.
And if one does fall, if it's holding up a particular section, that section will the sag a bit, and so you get the Vacuum (Hand or Floor) out and find it that way. Really..not enough of a issue to make one forgo such an easy solution.
Another option would be Upholstery Tacks, which have longer points, and you can place them according to where the Ceiling Joists are, and set them in place with a small Tack Hammer.
Either way, a minimum number of very small Holes will be needed, and you won't have to worry about securing a much heavier Framework above your Head.
But....as a last resort, you can make a grid on the Ceiling using Pine Wood Lattice (1.5" x .5" strips spray painted Black) that is secured to the Ceiling (..and into Joists every 3'...) with very skinny 1-1/4" Finish Brads, and use the Thumb Tacks pressed into the Pine Wood Lattice. Then, I can assure you they are not gonna fall out.