Logan Merkle received his first bobblehead — Shaquille O’Neal wearing a Cleveland Cavaliers uniform — when he was 4. The Wadsworth boy carried the jiggling, bulbous-headed figurine with him everywhere, like many kids carry a teddy bear, Logan’s mom, Amanda Merkle, said Saturday. Whenever a piece of bobblehead Shaq broke, Logan’s grandpa would patiently glue the pieces back together.But Logan, now 11, has apparently outgrown his bobblehead sentimentality.He was among the youngest wheelers-and-dealers Saturday at Akron’s Bobblecon, trading items from his collection — now about 250 bobbleheads strong — for some new additions.Pedro Avalos II of East Akron organized Bobblecon in the event space at the Ancient Order of Hibernians on North Main Street in the North Hill neighborhood of Akron.