Nowadays, a barmbrack can be bought in the supermarket but doesn't usually contain all of the above-listed items -- many cakes only contain a ring.    From Wordnik.com.  [Halloween's Celtic Roots] Reference

Another food associated with this festival is fruitcake or bairin breac (barmbrack) which had items in it that were used for foretelling the future -- a pea (or rag) meant poverty, a bean meant wealth, a religious medal meant the finder may enter a convent or seminary, a ring meant marriage, and a stick meant that the person who received this in their slice of cake would be beaten by the marriage partner.    From Wordnik.com.  [Halloween's Celtic Roots] Reference

Maria superintended the distribution of the barmbrack and saw that every woman got her four slices.    From Wordnik.com.  [Dubliners] Reference

Ancestral town of Moneygall, Co Offaly (pop: 298) has come up with a celebratory barmbrack.    From Wordnik.com.  [techno-culture] Reference