Press packets are fairly easy to make. They should be sent to reporters at all of your local newspapers. Read through each newspaper and pick a journalist you think would be interested in your story. This journalist could be the art writer, culture writer, teenage writer or an editor.
Ingredients of a press packet:
letter to the reporter introducing yourself (it's helpful to write about how much you like the newspaper or an article written by the reporter)
press release (see "how to write a press release" below)
snapshots of one or two of your pieces
copies of any newspaper articles you were in
one-page statement about yourself and your work (just background info about you)
resume (include biographical dates, education, any group shows you've been in, any awards or prizes you've received--even scholarships)