LEGO has released a number of key chains sets over the years based on many popular themes, including licensed themes. Most feature a minifigure attached to a key chain, although some simply have a LEGO brick or another LEGO element.
Summary
Gear Key Chains / Animal Duck Key Chain set 852985 was released on October 6, 2010, retailing for $5, it has since been retired. New, unopened sets are valued at $14, while used sets sell around $11.
Read more