For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
Just a note about the reason for wearing the ring on the fourth finger: It has nothing to do with blood supply or drainage, but rather that it is the only finger in the hand that is supplied by three nerves (Ulnar, Median and Radial nerves)
Marius, I seriously doubt they had that kind of knowledge of anatomy when the custom was adopted.
I do not wear a wedding ring, however I wear a nose ring as a symbolic symbol that I am married. I feel it reflects my African roots and biblical beliefs.
The Lord Jesus taught us how to worship God. We must worship in Spirit and in truth; with all our heart, all our strength, and with all our mind.