A fun algorithm that draws a mirrored diamond around bars according to the desired size.
Generates outputs like this:
\ * /
\ *** /
\ ***** /
\ ******* /
\*********/
\*******/
\*****/
\***/
\*/
/*\
/***\
/*****\
/*******\
/*********\
/ ******* \
/ ***** \
/ *** \
/ * \
Haha' :)