They were called wampumpeag, were sewed on deer or other fine skins, and the belts thus made were used to emphasize points in negotiation or in treaties, or in speeches.    From Wordnik.com.  [Folkways A Study of the Sociological Importance of Usages, Manners, Customs, Mores, and Morals] Reference

And the year before that, he came in third having tripped up on the word "wampumpeag," a string of polished beads or shells.    From Wordnik.com.  [StarTribune.com rss feed] Reference

NID3 has separate entries for wampumpeag and peag.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol X No 3] Reference