Hexagon
From xat wiki
(HEXAGON) - Hexagonal smilies
The Hexagon power allows you to give a pink hexagon shape to any yellow smiley. To do this add #x to the end of a smiley code.
Examples:
- (xd#x)
- (hello#x)
- (biggrin#x)
- (tongue#x)
Note: Only works with smilies in brackets.