Lengths and clasps and things...

I just finished a new necklace and because of some information I saw in a blog poll, this necklace is smaller than i usually make. Small beads with a small pendant. It seems a lot of people would like more petite jewelry than I usually make. I also read that a lot of people prefer lobster claw clasps which I seldom use. I mostly use toggle clasps because I think they are really lovely and I also find them easier to put on. So, I have an idea not to finish this necklace, but to list it without the clasp and allow the purchaser to choose the type of clasp. While they are at it they can choose the length from 14-16 inches since it should be choker or just below choker length. Other sellers may be already doing this though I have never seen it in anyone's shop. The only thing I have ever seen is jewelry makers offering to adjust the length of something if necessary. So, what do you think? Should I try it and see how it works and what people think if I get any feedback? Or am I not thinking of something I should be and so this isn't such a great idea? Let me know what you think! I would love to hear from you.