I have killed Wandering Jew, Aloe, and mint (both spearmint and peppermint) at least three times. Each. Plus many other types of plants I only attempted once.
After you kill a plant several times, you learn what conditions it won't tolerate
I now have three-year-old Wandering Jew and Aloe that have gotten very large and that I have propagated into other pots that are also doing well, and I have a one-year-old chocolate mint plant that is doing great after recovering from near-death.
Wandering Jew does flower (lots of small pink flowers), but it is mainly grown for its leaves, which are purple. They will turn green if the plant doesn't get enough light, though - if you don't have sunny windows, leave it under a flourescent light that is usually on during the day.
Aloe also flowers, though my grandmother's plant did not start until it was 20 years old. I haven't been able to find any information on what conditions cause aloe to flower.
Flowers tend to be less hardy, easier to kill, than foliage plants. You might try a forced flower, though. Narcissis ("paper whites") are grown by commercial plant sources, who sell a bulb. You plant the bulb in rocks, basically, and it makes flowers from the nutrition in the bulb and water you give it. They can only be forced once, though, so most people throw them out after one season.
Fruit tree cuttings can also be forced, I believe. Just stick a cutting in a jug of water, and you can have cherry blossoms or apple blossoms etcetera for a few weeks.