Manufacturing organizations are the best places to look. Join or participate in some good manufacturing associations, and look for referrals from people in those groups.
In the meantime, Google is a great place to start looking for companies. I just did a Google search on "manufacturer of lanyards" and received 3,450 hits on that one product alone.
Ivan Misner, a networking expert, is the founder of
Business Network International and senior partner for the
Referal Institute. He has written nine books, including the recently released
New York Times bestseller
Truth or Delusion: Busting Networking's Biggest Myths.