Condiment Island has some condiments such as ketchup, mustard, and mayonnaise. There are also napkins as well as a light brown wooden sign on top of which reads the stand's name in dark red text.
All other appearances
The wooden sign is dark brown with the stand's name written in white.
Role in series
"The Algae's Always Greener"
Old Man Walker gets a bottle of ketchup from the stand at the beginning of the episode. However, Plankton is hiding in the bottle of ketchup, intent on stealing the Krabby Patty it is to be squirted onto.