LEGO Yellow Head with Silver Glasses and Open Mouth Smile (Recessed Solid Stud) (3626 / 89164)

LEGO Yellow Head with Silver Glasses and Open Mouth Smile (Recessed Solid Stud) has been used in at least 10 LEGO sets over the past 14 years, since it was first used in 2010. You can also find this part in at least 2 other colors. It has a design ID of 89164 which can usually be found molded into the bottom of the part.