Sometimes, 3D effect can add depth to the picture and the words more outstanding. However, it doesn’t always work. I will list some design I found and share with my thought:

Cited From http://artek92.deviantart.com/art/3D-Typography-artek-92697024
A nice and cute 3D effect typo. But it seems hard to recognize what the typo for.

Cited from http://matemute.deviantart.com/art/to-paris-76562354
Nice work. Candy like color make the whole picture sweet and shining

Cited from http://leonardclagett.deviantart.com/art/Garamond-III-53288935
Golder color make the whole picture has sense of luxury. Personally though, it is more suitable for an background

Cited from http://www.morevision.ru/
three cool and semi warm color make the summer a little bit cooler.

Cited from http://www.morevision.ru/
Number 1 blended with the trees… A nice design.

cited from http://gomedia.deviantart.com/art/Rebuild-69237017
Personally like the texture on the words. the stone-like words feel like rocky. but the problem is, it is so hard to recognize what the words mean.

Cited From http://bloodyhippo.deviantart.com/art/Typography-on-a-Hill-93154976
Still a nice design, but just design. at least, I cannot know what those letters for.

cited from http://gweeva.deviantart.com/art/Magical-Alphabet-92238394
I have to say, I though that it was not a nice one. All green and dark color make everything blended. those letters are hard to stand out from the background

Cited From http://luuqas.deviantart.com/art/Art-line-87680251
Still grass with stone type 3d words. not bad, Personally, I don’t like the glass like path.

Cited from http://cronos2006.deviantart.com/art/Duality-63406972
I am a liitle bit lost for this one. Just can say, that is not my style.

Cited from http://iunewind.com/2007/03/02/winter-process-v2/
I like the color and paper-cut style decoration

Cited from http://www.thenorik.com/
wooden like 3D typo. Maybe it is the font’s problem. I am not so with this one. and branch on the background also take attention away from the title.