Here's two that stand out:

Western Rivers electronic Predator call. The sounds suck! The worst is their Owl and crow fight.... Its a crow and a mourning dove!

Buck Wing Bobbin head deer decoy. It looks real enough and the bobbin head is pretty realistic but the thing is made SO flimsy that it's a royal pain to set it up without it popping apart. It even has a warning molded into the plaastic telling you the warranty doesnt cover dropping the head while the weights are attached. Something thats going to be used out in the feild shouldnt be so fragile that it needs warning labels!