The OP says that the same-sex couple asked him to make candles for their
wedding.
Same-sex marriage is allowed in
Vermont,
New Hampshire,
Massachusetts,
Connecticut,
New York,
Washington D.C.,
Iowa and
Washington. (
statesthatallowgaymarriage.com/)
If he is making candles for a
wedding, then they must reside in one of these states.
Currently, these states (and one federal district) have expanded their civil rights to include sexual orientation: Alaska, California, Colorado,
Connecticut, Delaware, Hawaii, Illinois, Indiana,
Iowa, Louisiana, Maine, Maryland,
Massachusetts, Minnesota, Montana,
New Hampshire, Nevada, New Jersey, New Mexico,
New York, Oregon, Pennsylvania, Rhode Island,
Vermont,
Washington, Wisconsin and
Washington D.C. (
irem.org/pdfs/publicpolicy/Anti-discrimination.pdf)
Homosexuals are protected from discrimination in all of the state in which gay marriage is legal. It would be a violation of the law to refuse them service.