I present the guile edition of the "Programming Language Examples Alike Cookbook"

http://pleac.sourceforge.net/pleac_guile/index.html

From later in the email thread:

> The point is to croudsource a HOWTO collection.

Seems like a cool idea to me :)

Link to the quote, for context : https://lists.gnu.org/archive/html/guile-user/2013-01/msg001...

I wouldn't be surprised if the $100 award wasn't necessary -- there are a lot of would-be Schemers out there who would jump at a chance to implement or re-implement something in Scheme, either as an exercise or for the honor and glory.