The last time I saw Mario egg was 2014 (I wrote about them in this post). I had purchased one in Easter 2013 as well (Read about it in this post).
So, it has been three years since they were last around.
The latest egg once again has - or should that be 'had' now that Easter is over? - a mug just like in 2014. This one, however, is a heat changing mug that has a black background when it's in normal temperature, but changes to sky blue when hot liquid is poured in.
There was one large egg and three smaller eggs inside along with the aforementioned mug.
They've also gone old school. The image is taken from the original Super Mario Bros. game. The previous two eggs were from the modern versions of the franchise.