Sunday my family and I were visiting with my son and daughter-in-law in Lewisburg, WV. We attended church with them, Lewisburg UMC. The services were special that day in that they planned a shortened regular service, then dismissed the congregation to attend a World Communion Service on the lawn of the town's Carnegie Hall (yes, it's a Carnegie Hall, but not THE Carnegie Hall).
Congregations of two other churches - Baptist and Presbyterian - joined the UMC folk for a brief time of Scripture, music, prayer, and then the elements of communion.
Simple, but powerful.