What are the names of the mechanicals out of A Midsummer Night's Dream?

The mechanicals are a group of working class men who are the clowns of the play. They decide to put on an amateur theatre production of Pyramus and Thisbe for the wedding of the duke Theseus. While practicing in the woods, Nick Bottom, a weaver, gets his head transformed into that of a *but*, and Titania, the fairy queen, presently falls in love with him.