Oooh, yes, an enameled frame would look sweet. But it would have to be for show. Enamel would be too brittle (it is glass) on a flexing frame.
It would be possible to set off cut outs in lugs with enamel. The fusing temps of enamel are lower than pure silver or copper, as both are regularly used as the base to build an enameled piece.
Dichroic glass would also be very useable as its slumps and flows at lower temps than even the enamels.
I like the enameled headbadge idea. I'll have to work on my enameling skills (mediocre at present. I'm just learning as shown by these three enameled .999 silver leaves show.
http://users.cis.net/coldfeet/3leaves.JPG )