So the first and most noticeably cool thing about this series is the bright yellow toilet shaped containers. My 7 year old son thought this was the greatest thing ever!! I really like that they are making the different shapes now (like the red wheelie bins from series four) to distinguish each series a little more. Also series 5 introduces us to awesome "frozen trash". Basically these are little clear ice cubes with a small trashy "frozen" in the ce..