This should not be a very difficult app. Hash tags have become very popular and I want to create a random pre programed hash tag generator that will go with peoples emotions. What would happen is you would be typing and then when you wanted to put in a hashtag you would click on an icon of a happy,sad,mad ext... face depending on your mood and the generator would then produce a random has tag about your mood. For instance you may say " Wow!! I am so happy I just got promoted!!(press the happy face from the app and get ) #Itsagreatdaytobehappy:). Basically it would be very similar to emoticons but for hashtags. The only part I see that might be difficult is you would need a way to be able to get to the icons to generate the hashtags easily while you are typing. Other then that I think this should be really easy app to program.