Advertising a Launcher App


I made a “launcher” app and I published it at 24.09.2013.

Up to now(10 day), total install 3.200 and I guess it’s growing so slowly. But I want to make it fast and I’ll be ready to spent 3k$ for this app(next week).
What should I do about promoting this app ? Intersistial or admob banner etc…? What’s your advice ?
I would like to take advantage of your experiences, according to your advices I’ll do and will share my stats daily.