I took a piece of fleece and made a small pouch out of it, then cut a small hole in it.
The gliders inside of pouch are usually more relaxed.
Put in a few live mealworms for them to chew on and pull out a leg and start cutting. Works BEST with 2 people, one holds the pouch and glider steady the other cuts nails. but my wife has done it alone too.
I have tried several ways, in fleece cloth, in netted pouch and this has worked the best by FAR.