I seem to be obsessed with making perfect pairs of beads lately. They make fantastic earrings. I work on tiny mandrels (1 mm) so they don't wobble on your headpins. People always ask how I get them so even. Practice, practice and more practice! I sometimes make two on one mandrel but when I make the encased ones I can't do that, so I just have a good eye for getting them the same size I guess. Here's a bunch, in my Etsy shop.