The story of the Chalice logo 

The logo of the Christian Church (Disciples of Christ) is a red chalice with
a white St. Andrew's Cross. The chalice represents the centrality of communion  to the life of the church. The cross of Saint Andrew is a reminder of the  ministry of each person and the importance of evangelism, and recalls the denomination's Scottish Presbyterian ancestry. 

After the 1968 General Assembly, the Administrative Committee charged a
sub-committee with the task of proposing a symbol for the church. Hundreds of  designs were submitted, but none seemed right. By November the Deputy General Minister and President, William Howland, suggested that the committee's staff consultant and chairperson agree on a specific proposal and bring it back to the committee: that meant Robert L. Friedly of the Office of Interpretation and  Ronald E. Osborn. 

On January 20, 1970, the two men sat down for lunch. With a red felt-tip pen,
Osborn began to scrawl a Saint Andrew's cross circumscribed inside a chalice on his placemat. 

Immediately, Friedly dispatched the crude drawing to Bruce Tilsley, a
commercial artist and member of Central Christian Church of Denver, with the
plea that he prepare an artistic version of the ideas. Tilsley responded with
two or three sketches, from which was selected the now-familiar red chalice.

Use of the proposed symbol became so prevalent that there was little debate
when official adoption was considered at the 1971 General Assembly. The chalice is a registered trademark of the Christian Church (Disciples of Christ).
Congregations and ministries of the Christian Church (Disciples of Christ) are
free to use the chalice in publications, web sites and other media. 

Because most congregations call themselves "Christian Churches," the chalice
has become a simple way to identify Disciples of Christ Churches through
signage, letterhead, and other forms of publicity.