What horror movie took place in a funeral home and had a sphere like device that would attach itself to people's foreheads?

Phantasm.

Jody is the kind of guy that every 1970s teen looked up to. He's in his early 20s, has a cool car, splendid '70s hair, leather jacket, plays guitar and (naturally) snags all the girls. His little brother, Mike, in particular, admires him and emulates him at every turn. Things start to go astray, however, when the two brothers and their friend Reggie attend a funeral for a friend. Mike notices a tall man working at the funeral home; in the course of his snooping, he sees the tall man put a loaded coffin into the back of a hearse as easily as if it was a shoebox. Jody doesn't believe his little brother's stories, though, until he brings home the tall man's severed finger, still wriggling in what appears to be French's mustard. From there, the film picks up a terrific momentum that doesn't let up until the sequel-ripe twist ending.
[amazon.ca/Phantasm-Don-Coscarelli/dp/0792839234] no longer exists

http://www.casavideo.com/movie/browse/titlenum/24787

Phantasm.
One of the best low-budget horror films of the 1970s, Phantasm has acquired a large cult following for its creepy visuals and a formidable villain in the arachnoid undertaker known as the "Tall Man" (Angus Scrimm). A standard, albeit effective horror film for most of its length, it suddenly veers off into science fiction territory for its bizarre conclusion, presenting a slew of fresh and frightening ideas along the way. Replicas of one of the more memorable set pieces -- a flying spiked sphere which bloodily drills its way into victims' heads -- became a hot collectible among genre fans. Highly recommended for anyone needing a good scare. ~ Robert Firsching, All Movie Guide
http://www.answers.com/topic/phantasm-film