Japanese Kimio Kosaka pleased with the original clone of the Metaboard breadboard, which actually has no PCB. Everything is neatly and beautifully soldered with the help of a single-wire wire, and the “shawl” is standard, and even Arduin shields can be tied onto it (with the risk to the “shawl” itself).
The author also has some good ideas, such as One chip Arduino ver.1 (I liked it more) and One chip Arduino ver.2 ')
Note: long thought where to post. At first I wanted to make a topic link, but it did not work out (thanks to the good administration, which for some reason saw this opportunity out). In DIY it doesn't seem to fit (the NOT DIY section would be more suitable), so I decided to add it to Humor for now.
UPD111103 : at the prompt, transferred to the Arduino blog.