There are like two Yoshi toys. One is a do nothing toy that serves no purpose. You push on his back and it plays some song. Really annoying.
And the coolest one is Yoshi with eggs or something in his mouth. You stomp on it and it shoots the eggs in the air, much like those batting practice things you can get for little league baseball.
I bought probably the only cool toy in the bunch today. It's a Mario shaped like a ball. My kids like them.