How to turn a iPhone pictures into a instant picture?

I love the look of the instant pictures like from the fujifilm and others but how do I get pictures that I already have on my phone to be like that?

Instagram and many other apps have filters that do exactly what you want to do. Search the App Store.

Very easily! Just buy a Fuji Instax Share SP-1 and print smart phone photos directly to instant film!

Here's a good site to buy from:

http://www.bhphotovideo.com/...yes&sts=pi

And here's a review

http://photographyconcentrate.com/review-fujifilm-instax-share-smartphone-printer-sp-1/

I hope this answers your question and you'll remember to choose a best answer! Happy shooting!

Tone down saturation and contrast, blur them a lot then print them in small sizes with large white borders.