This stamp is based on
's original Lego Fan Stamp: [link]
Many thanks to him for producing the first LEGO (R) stamp on dA.
I changed the font on the word "fan" to VAG Rounded so it matches the trademarked LEGO font a little bit better, and modified the edges of the stamp to give it that "transparent" look.
*UPDATE* I decided to italicsize the word FAN, cleaned up some of the background and made the (R) trademark logo clearer I don't want to get into trouble with LEGO