algorithm for making letters out of text

Question

does anyone know of an algorithm that uses small images or letters spell out bigger letters? For example, if I want to spell out the letter T:

or E:

what if instead of using letters, I wanted to use an image for each block?

In particular, I'd like to do this on the iPhone.

Answer 1

Relevant Figlet fonts:

• ftp://ftp.plig.org/pub/figlet/fonts/contributed/alphabet.flf
• ftp://ftp.plig.org/pub/figlet/fonts/contributed/letters.flf
• ftp://ftp.plig.org/pub/figlet/fonts/contributed/doh.flf

For images, replace each character with an image.