I like the styles on your pendants! but think they'd look even
better made with polymer clay
(or at least a high-quality air-dry clay**).
Polymer clays can also be "carved" after hardening if you want (with various tools, from linoleum cutters to pins), but are more often stamped or impressed before baking (which is a lot easier), or even made with reverse molds. There are other ways too.
The impressions made in those ways can be completely "backfilled" with more clay after baking.
But more often, various colorants (including metallic ones) are used to "antique" those lower areas leaving the colorants only in the depressions (or the reverse, the colorants are used to "highlight" only the upper areas, leaving the lower areas the original clay color . . . or both).
If you want loads of info on how to do those things with polymer clay (some of which could be generalizable to air-dry clays), check out these pages at my polymer clay "encyclopedia" site:http://glassattic.com/polymer/carving.htm
(most of page)
...(these 3 pages also have sections on antiquing and highlighting)http://glassattic.com/polymer/stamping.htmhttp://glassattic.com/polymer/texturing.htmhttp://glassattic.com/polymer/molds.htm
(You may also be interested in my answer here over at YahooAnswers on the main differences between using air-dry and polymer clays:http://answers.yahoo.com/question/index?qid=20110507004411AAmELzg
--read the "list of facts" there especially)
And here's more info on wire-wrapping and also what I call wire "architecture" if you want to check it out:http://glassattic.com/polymer/wire.htm
(Basic Shapes, and scroll down to Wrapping, Etc.)https://www.google.com/images?q=how+to+wire+wrappinghttps://www.google.com/search?q=how+to+wire+wrapping
wire-outlined, etc: http://www.lindagoff.com/wire4.html
(also click on Wire One, Two, Three)
some of Julia Sober's work: http://www.juliasober.com/polymergallery.html
some of Mike Buesseler's work: http://thepolyparrot.com/mikeb.htmlhttp://polymerclaycentral.com/mikeb/Lockets.htmlhttp://glassattic.com/polymer/pendants_cording.htm
(click on More Architecture, and perhaps on Tubes, etc)
** "Cold porcelain" clay is deadly hard to make at home and get right, unfortunately! If you're interested, there are more tips and recipes re making or buying it, and using it on these pages of my site:http://glassattic.com/polymer/sculpture.htm
(click on Air-Dry Clays near top of list, then scroll down to Cold Porcelain)http://glassattic.com/polymer/armatures-temp.htm
(click on "Cornstarch Clays")