I don't know if they're on practice squads, and I'm sure this isn't a complete list, but here are a few:
Fangupo, H and Sorenson, D- KC Chiefs
Unga, U and Reynolds, D. - NY Giants
Denney, J - Miami Dolphins
Hadley, S - Oak. Raiders
There may be others that aren't listed out on the interwebs, I don't know.