Here´s one

Letters in the sky.

http://www.voorhes.com/images/light/36furniture_font.jpg

Compilation of 22 object typefaces - worth a look if you're into this kind of thing.
http://www.reubenmiller.typepad.com/my_weblog/2008/09/21-unexpected-a.html

The meat alphabet is fantastic!

I agree. I like the trucks too.

Tiepography: http://ednacional.com/2009/02/17/tie-pography/

Weird coincidence but here's one that appeared in the Daily Mail this very morning. It's like they knew you were looking!

Here is a blog featuring a few more. Some of them were already seen in the compilation posted by madefresh, but there are a few new ones too.
http://www.holster.co.uk/blog/alphabets-with-character

Made from bodies by Anthon Beeke in 1970 and apparantly recently plagiarized by someone:

http://www.beeke.nl/aB_alphabet_02.html
http://www.beeke.nl/aB_alphabet_01.html

. . .
Bert Vanderveen BNO

http://mattus.web-log.nl/vibe_visual_brand_experie/images/mattus_rubberb...

Google maps font.

The iQ font.

http://haha.nu/files/uploads/HLIC/farm3.static.flickr.com/2474/355839227...
For the entire alphabet, check out http://www.thijsverbeek.nl/index5.html