Depending on the context, anything phallic might do (the staff, the pillar, the One, etc).
Male animals are often helpful (the bull, the buck, the lion, etc) - again, depends on what you want the metaphor to do.
a good metaphor for describing a criminal is the criminal was like an explosion of heat
A balloon
relay
helping hand
he is a dancing star
beautiful
No, that is a metaphor. I think. ^^
There are several good websites that have nice metaphor worksheets available. Try LessonPlanet.com for over 200 metaphor worksheets that have been rated by other teachers.
Friendship is a sheltering tree.
Yes! And a very good one! :)
she/he is a jumping jackrabbit!
like a ghost.