I've released the June emitters -- sorry for the delay. Most of these I created from Diony's emitters (last month's emitters), which I have to say is probably the best way to come up with new emitter ideas.
Some people think this is "cheating". I think that as long as you make significant changes to the original emitter, there is nothing wrong with it. It's almost the only way I come up with fresh emitter ideas these days.