A sea-related proper noun that starts with "R" is "Reef," referring to a coral reef. For teens, this could relate to a popular brand or location, such as "Reef sandals," which are often worn during beach outings or water activities.
tocos is sea related
A telephone
Babble
Something that belongs to a teenager that starts with M and sea related is: Moter Boat and Muffdiving equipment.
OMG lol
Abraham Lincoln
Turtle or terrapin
A telephone
Pensacola is a city in Florida.
Something related to Dr. Seuss that starts with a J or K would be the book the King's Stilts. There is also King Derwin from the book Bartholomew and the Ooblek. Something that begins with J that is related to Dr. Seuss could be the joy that his books bring.
Yankee Battle of Yellow Tavern
Mars, meteor, moon, Milky Way