What iPhone apps make these effects?

I'm looking for apps, preferably free ones, that make these effects:

Mirror image
Collage (without ugly borders or gaps between photos, up to nine photos)
Polaroid

Do you know what apps give you these effects?

My iphone power button is pushed in?

It was working fine earlier today, and then suddenly when I tried to push it down, I realized the button didn't work, and I opened the case and saw that it was pushed in ):. Please help, I tried looking for solutions, but everyone said the phone is screwed D:.It's an iPhone 4S.

Would you replace your own screen on your iPhone or iPod?

Hi, I was just wondering if you would replace your own screen on your iPhone, provided you have the correct tools, videos and guides? And help if you can get access to it?
Thanks

Added (1). I'm not looking to replace my screen, I was just wondering if YOU would do it.

Can you use an old iPhone just as an iPod?

Awhile ago i lost my ipod touch and just haven't wanted to pay another 200 bucks for a brand new one. My friend offered me his old iphone (3gs i think). I already have my own phone but it isn't a smart phone so it can't hold music. Is it possible that i can take his old iphone and connect it to my itunes and use it just as an ipod only for music?

Iphone 4 problem - weird box around apps?

I suddenly got this weird Box that appears around any app that I touch. If I'm typing it goes around each letter on the keyboard. The first touch puts the box around the key, then I have to tap a second time to type that letter. When I tap on the next letter it often types the old letter Again if the box doesn't move. This is so incredibly frustrating! Is this a bug or a feature? How do I turn it off?

Added (1). I thought it might be an accessibility issue. Problem is that I can't get to settings with this turned on. My settings are on the second screen to the right. I can't swipe to that second screen with this "feature" turned on. Is there a voice command to turn it off?

Added (2). Yep, it was voice over. I had to do another search. The three finger swipe let me get into my second screen to settings and turn it off.

How to add ringtones to your iPhone free without iTunes?

I want a new ringtone for my iPhone 4S iOS 6, but I don't want to pay for ringtones. I know if you download an app that let's you create your own ringtones and you have to use iTunes for that. But that's too much for me to handle. So Is there anyway I can get free ringtones without using iTunes or paying for it? Please let me know, Thanks!

How to sync my iPhone to another computer?

I recently got a new computer and I want to switch where I sync my iPhone WITHOUT deleting anything on the phone at all. (Not iCloud, regular syncing and backing up to iTunes) Is there a way a could just move the data from my older computer to this one with out having to restore the phone before I sync on the new one? Please help. If anyone has any tutorial or instruction links, that would be a big help as well!