My favorite is the glass/slate Graveyard call made by Leland Keith. The excellent craftmanship makes it look almost to nice to take into the woods but it sound to good not to. Leland usually has a call or 2 listed on Ebay and I' ve seen them go for anywhere between $60 - $200 or you can take a look at www.graveyardcalls.com His custom strikers are great also.