You can get some nice colours with LoS and ammonia but you need to go slow, doing several dips and cooling the metal between, so you can stop it at just the right time. I particularly like to do this with textured metals, since you get more of an iridescent effect. Similar to ammonia (since it is also alkaline), you can use sodium bicarbonate (baking soda). This is finicky and I haven't quite controlled all the factors yet so I can't give much detail other than encourage you to experiment as well.
Another cool patina is to add a little instant coffee to LoS. The smell is gag inducing (sulfurous coffee, how delicious) but you get darker blue-greens or bright blues, depending on temperature, time and coffee concentration.
