I find there are so few occasions for me to wear true ghilles that it wasn't worth it. That being said, an enterprising person might want to DIY some ghillies--all that is required:
One pair brogues (black wingtips)
Black shoe polish
Black boot laces (at least 60", preferably 72")
Stout scissors or exacto knife

Cut the tongue of the shoe out, then cut out every other eyelet on the top. Use a touch of black shoe polish to darken the raw edges and lace up with black boot laces. If you want tassels, look for black tassels in the drapery section of the local fabric store.

BTW, this wasn't my idea, I read it in a thread here somewhere. . .