Gimme Collage Express is a simpliest solution for creating nice photo gift for your friend in instagram. Just type in your friend nickname and push "Share with friends" button to send your photo collage via Email, Skype, ICQ, Picasa, Hangouts or Vkontakte. No authorizations are needed. Try it now, it's takes you one minute!
You can check it out on the Google Play.
Here are some screenshots:
