With the banner command, you can use the # symbol to create large messages:
UBUNTU > banner Andrew
#
# # # # ##### ##### ###### # #
# # ## # # # # # # # #
# # # # # # # # # ##### # #
####### # # # # # ##### # # ## #
# # # ## # # # # # ## ##
# # # # ##### # # ###### # #
UBUNTU >
If the message has two words, the second appears below the first:
UBUNTU > banner Red Rum
######
# # ###### #####
# # # # #
###### ##### # #
# # # # #
# # # # #
# # ###### #####
######
# # # # # #
# # # # ## ##
###### # # # ## #
# # # # # #
# # # # # #
# # #### # #
UBUNTU >
But, if you put the message in quotes, the two words appear on the same line:
UBUNTU > banner 'Red Rum'
###### ######
# # ###### ##### # # # # # #
# # # # # # # # # ## ##
###### ##### # # ###### # # # ## #
# # # # # # # # # # #
# # # # # # # # # # #
# # ###### ##### # # #### # #
UBUNTU >
