A plastic Communion Cup that measures 1 3/8" tall and 1 1/4" across the top holds approximately half an ounce.
Check on the following online stores offering all of the communion supplies that your church needs:
www.christian-communion-supplies.com
www.church-supplies.com
www.familychristian.com
www.kingdom.com
What does a tiny plastic communion cup tell us about evangelicalism? Read Martyn Wendell Jones' Holy Relics: A Plastic Communion Cup to find out.
Of interest, Methodists in the Victorian era had a special version of communion cups. Slanted communion cups allowed Victorian era Methodists to take communion without the crude appearance of drinking alcohol. Watch this video to learn more.