Cubone, Pokemon #104, has a skull helmet that it never takes off.  Because of this, no one has ever seen its real face.  Fine with me... it likely would have been hard to draw *grin*.

Cubone is made with a toilet paper tube, a printer, a piece of paper, some crayons, scissors, and glue.  I always prefer to use a heavy paper (like construction paper), but it isn't necessary. 

Cubone pokemon craft

Template for a colour printer

Template for black & white printer