One of the ways to practice pronunciation of foreign words is learning tongue-twisters. Russian tongue-twisters (скороговорки, from скорый - fast and говорить - to speak) might seem pretty hard, but it's a fun way to master all those weird sounds. :) Below are three videos from Russian natives. First two are easier, and the third one is for the bravest of you – even I cannot say all of those tongue-twisters. Good luck!
(Tongue-twisters start at 0:34)