Like so many artists trying to make a living from what they do, you are experiencing a tug of war between a business issue and authentic, artistic expression. What's more important in this instance? Sales, or putting something out there that makes a passionate statement about you as an artist?
As for the choice between names, I think it's acceptable to be somewhat cryptic and still maintain your artistic integrity. 'Shaman's Flowers' is perhaps more poignant, more personal than 'Suicide Flowers'. The beads themselves will convey more meaning and evoke an emotional response that will fill in the gaps for the viewer, if only subconsciously. From a purely artistic pov, I prefer the former.
From a business pov, I also think 'Shaman's Flowers' will work better.
Take a while to decide, though. You've been through a draining and cathartic experience in creating the beads themselves. You're asking a lot of yourself to make these kinds of decisions at this time.