The FDIM Potluck Contest was a challenge to build "something"
with a bag of fairly common parts kitted by Diz, W8DIZ
created a 40M CW transceiver of very impressive specification
with this $25 bag of parts. His description of the project can be found
here: FDIM Potluck Winner
The original QRP-L announcement of the contest:[QRP-L] FDIM 2007 Design/Building Contest
Some very interesting schematics and a spreadsheet of the parts
allowed in the Potluck challenge can be found at the Potluck Repository