new herringbone line: charm and focal possibilities

One of the neat aspects of my 2012 herringbone line is that all of the pieces will include at least one detachable charm.  As many of the pieces in the line can be worn as bracelets or necklaces, the attachment will function as a charm when the piece is worn as a bracelet and as a focal when the piece is worn as a necklace.  You got an early reveal of this for my November challenge piece.

As you can see in the picture, the charm attaches with a lobster clasp.  I have also considered using a split ring for the charms.  The lobster clasp is a little more user friendly but stands out a little more.  Preferences/opinions?  I really want this line to do well so I want to do what will sell, not just what I think will work.

I want this line to be very versatile.  One of the aspects of the versatility is the charms and how they:
1) will hang differently depending on how the piece is worn
2) can be switched out for new charms at any point
3) can be removed entirely

I am planning to offer at least one charm with every piece.  This is another aspect where I would like feedback.  Would it be more desirable to include two or three charms?  Obviously this would increase the price but again would increase the versatility.  Not all of my charms will be handmade, such as metal charms that I purchase, so I don't feel right selling all of them separately.  I am planning at least two different types of handmade charms that I can list separately.  Would this be desirable?  Or should I just include the charms with the herringbone listings?

This brings me to my original inspiration for this post: What types of charms would people like to see?  What would you want to buy?  I don't just want opinions on what looks good.  Put yourself in the buyer's shoes and consider what would or would not make these wrap bracelet/necklace listings marketable.

I am planning to continue to use large beads for focals, as I did with this challenge piece.  Of course leaf beads have been the first thing on my list.  What else would work well?

I am also planning to start making glass pendants.  Should I offer silver chains so these pendants can be worn separately?  Again, this would add more versatility to the listing but it would also increase the cost so I don't want to include something that won't be used/isn't necessary.

I will also include metal charms with some listings.

Metal charms are very easy to order so I can customize this option as people like.  One thing that I will mention in listings is that I can add initial charms.  Are there other popular charm options that I should suggest or consider including?

I am going to order lampwork, sea glass, and other hand crafted/hand drilled charms as I can to include with listings.  Is there anything specific from this category that people would like to see?

Here are some other options that I think would make good charms.  I'm not planning to make or order these myself, but I could customize them for people so they are detachable charms that would work with my line.  What do you think of these final ideas?  Is there anything else that you'd like to see here?

My official release for my herringbone line will be early January 2012. I would like to have a plan in place with the charms by then.  I need feedback for this to happen.  Any and all answers to the questions in this post would be greatly appreciated as well as any other thoughts on this topic.  Thanks!

I included this post in Erika's It's a Wrap Link Party 11/28.