Advertised as Nailhead Trimmed drapes, upon consideration, these really can't possibly be decorative nailheads attached to fabric drapes. More likely, they are all dressed up for a sophisticated, yet edgey way with shiny metal studs like bikers use to trim their leather garb. Here's a source for all sorts of studs that could be-dazzle your decor.
Studs and much more available at Studs and Spikes.
A bag of 50 runs approximately $5.00. All you need to Be Dazzle Your Drapes is to measure and mark the edges of your plain old drapes and attach the studs. For a visual demo of accurate stud setting, check out this YouTube stud demo.
Other than a few Bags O' Studs, the only tool you'll need is a pair of needle nosed pliers and alot of patience.