Ah ha! I think maybe now we're getting somewhere. I found some multi-tiered displays (very similar to the ones for my pocket knives) that appear as though they would work very well for flashlights! And several other rather unique display types that would also be nice for small groupings of flashlights!
I hope it's okay to link to this site. I found it via google and I think it might be a nice resource for CPF'ers who might want this sort of thing? It's a site called aftosa.com. Here is but one page with items that may have great potential - and I haven't even begun to check out all the other varieties of displays they seem to have!