An overly fancy corkscrew opener that does way more than you would ever need it to do is an example of a gizmo.
Origin of gizmo; from uncertain or unknown; perhaps Spanish gisma, obsolete or dialect, dialectal variant, variety of chisme, trifle, jigger, ultimately ; from Classical Latin cimex, a bug
nounpl. giz·mos also gis·mos
Origin of gizmoOrigin unknown.