WOW, it’s a big challenge!! (I’m happy because i could finish it in 2008 ^_^ )
26 alphabet initial
x 10 color (black, blue, cyan, green, orange, pink, purple, red, white, yellow)
x 10 format images (Windows icon, Mac icon, 16×16(gif/png), 24×24(gif/png), 32×32(gif/png), 48×48(png), 256×256(png))
= 2,600 files!!
I hope you like this speech balloon icons and images , (if you do) you can use these as you want.
(Please just remember one – All of artworks of Iconexpo.com are undel GPLv3 )
[Example 10 color speech balloon images (just A-H for each) and downloand file links]