Anyone else using black envelopes for their invitations? I'm making my own invitations and using all back envelopes for the outer, inner, and r.s.v.p. I have tried about 10 different silver calligraphy pens (water based and oil)but they all look sloppy when used on black paper. I've tried an embossing pen with platinum powder and like the way it looks but it will take forever to address. There is a silver marker by Prismacolor that I sort of like and may use for the inner envelope, but it is pretty thin. Anyone have any other ideas?