In 2009, Hershey's introduced Thingamajig, a limited edition version featuring chocolate, cocoa crisps, and peanut butter inside. It has been reintroduced as of late 2011 on a permanent basis.
On September 11, 2012, according to Hershey's Chocolate World in PA, the Thingamajig candy bar is no longer being produced.
Read more about this topic: Whatchamacallit (candy)