Speaking QR code !

This is nice. QR code speaks. Englsih and many other languages, even finnish. http://qrvoice.net/ is worth trying

Make logos

at least this is logoshi.com is worth trying

Create business cards or calendars

There are many but this degraeve.com seems to be easy to use. Make a logo.Simple and fun

video editing

this is fast and easy . Try wevideo

Know this word ?

Not so easy but challenging wordgame is Knowword