12 sources
The Empire Strikes Back (1980)Howard the Duck (1986)Indiana Jones and the Last Crusade (1989)Raiders of the Lost Ark (1981)The Return of the Jedi (1983)San Anselmo Country Fair parade (20 Sep. 1978)Star Wars (1977)Star Wars: Episode I - The Phantom Menace (1999)Star Wars: Episode II - Attack of the Clones (2002)Star Wars: Episode V - The Empire Strikes Back (1980)Star Wars: Episode VI - Return of the Jedi (1983)The Young Indiana Jones Chronicles - Season 2, Episode 12 (12 June 1993): "Ireland, April 1916"