Louise, the best ones I used were the NYC nail polishes, LA Colors and Wet n' Wild fast dry. The Sinful Colors ones were the ones that had a dull finish.
Arlene, I'll have to try that idea about using the stickles! That sounds great!
I also heard that you can dip the tips in versamark and then dip it into embossing powders and heat.
I was really suprised how quickly the nail polishes dried. I thought I'd have to wait for hours and hours for them to dry, but it didn't take as long as I thought. I have to keep them stored in something the cats can't get into. They love to chew on stuff!