Polish Tongue Twisters

It seems like almost everything in the Polish language is a tongue twister to me.  But here is an awesome list of Polish Tongue Twisters.  I know I have trouble pronouncing the words "chrząszcz" and "źdźbło".  And then when you string two or three words together, it puts a whole 'nother dimension on some of these impossible pronunciations (not to mention full sentences and paragraphs).