My theory on fly fishing has always been that the challenge of fly fishing isn't to present something that the fish wants to take, but rather to convince a fish to take the fly whether it wants it or not! So, take any of those flies pictured in the thread above, mail them to me, and I'll give my honest, best effort to catch a fish on each one.
That's a great idea PBH. Go talk to your dad and see if he will let you try some of his.
He has a lot of those same flies. I tied some up for him in exchange for one of his pieces of fine art. It wasn't really a fair exchange, I got the better part of that deal.