Quote Originally Posted by quartz
1. how do you say "build-it-yourself" as in, for example, "build-it-yourself radio"?
You can use the E-learner expression, and there is the expression "сделай сам". "Радио по принципу сделай сам".
"Cделай сам" would be the stright translation for "build-it-yourself". There are such books that called that way that explain how to make and build yourself alot of different things, like radios, and other.