This Orthodontic front-tooth aligner looks promising.
Eight to twelve weeks is probably enough time.
Cost looks like $2000-$4000.
You can take the Aligner out yourself part of every day which makes it easy to clean your teeth.
It's less obvious than the traditional braces and you can leave it at home for a few hours a day.
If just works on the front teeth but they're the one's everybody sees.
It has a middle push section and two sides that anchor the spring-loaded connections.
It doesn't need to be re-calibrated because the springs can travel all the way from the starting point to the place you want the teeth to end up.
You can get a hidden retainer spring wire bonded into place behind the straightened teeth so they stay put.
You still need an initial mold and the orthodontist will keep an eye on progress every few weeks.
Where I read about it: The Daily Mail
The Inman Aligner home page.