Making ascii-art is just like drawing a picture. Except you have to use only the simboles on the keyboard. You have to be creative. For example:
_______________________
/ | \
/ | \
/ | \
/ | \
/ | \
| | |
| { | } |
| | |
| | |
| | |
| | |
| | |
| | |
|________________|________________|
See how I used curly brackets for the handles?