Block Fairy

The Block Fairy is a non-sentient floating two-dimensional being that has the distinct ability to annoy the hell out of you.
THE ABOVE STATEMENT IS A SHAM 
== WRONG THEY ARE ALL WRONG ==
The block fairy is an extremely powerful being who posesses great unknown strength. His Age is determined to be...unknown.
He has several moves and techniques:
Display on a shirt.
and more
It is also rumoured that he is a fairy princess, however, sources have not confirmed this.