I remember buying saving up to buy a Voltron toy as a kid.  It was a very small model with plastic lion limbs that did not transform or detach.  It was basically a toy robot with lion slippers and mittens.

Still, I thought it was the greatest freaking thing ever.  Unfortunately, I have no idea where the heck it could be.  Anyhow, I can’t wait to try modeling and printing a replacement.  I really like Tony Buser’s idea of modifying the Leonardo Robot as a starting point.