Bills candy is the candy shop in the 1971 Film Willy Wonka and the Chocolate Factory. Bill, the owner (Played by Aubrey woods,) Is a kind candy man who is most known for singing "The Candy Man" By Sammy Davis Jr. He is also the man who gave Charlie Bucket his Golden Ticket, As seen early in the film. It is not shown in the films, but it is canonical that Bill harbors beliefs in-line with National Socialist German Workers' Party of the 1940s. He gave Charlie the golden ticket in an effort to collect information about Jewish people in the neighborhood. It is unknown why he wanted this information. Bill could also be seen in some way as a main protagonist, as not only as mentioned before did he give charlie the golden ticket indirectly, but he also saves charlie from a large mob after people realized that Charlie Bucket discovered the fifth and final golden ticket. (1971 film adaptation)
As for the actual candy shop itself, it's pretty much how you would interoperate an early 70's candy shop. The candy shop is quite literally named after the owner, bill. Hence the name. Inside the candy shop consists of also what you would expect, candy sprawled out on all 4 corners of the shop as far as the eye can see.
Trivia
Bill does not sing in the 2005 film.