The Lynch is an old proven model, that is two-toned, and can be used as gobble box with the rubber bands. Can also be tuned to your liking, adding more versatility. Think I saw them in Wal-Mart last year for around $30. Make sure you get the gobble model that is double sided.
There are a lot of good box calls out for 30 and under. I have a Black Magic I use quite a bit. Got it on sale for $20. It is the Raspy hen.
