The Prism-gram is a prism-like object that sends mail in the Land of Ooo, and possibly comes from the Crystal Dimension. Once one has written a letter, one swipes the Prism-gram on the paper and it absorbs the writing. The message is transformed into light waves and sent to another Prism-gram via a beam of colored light. Then it converts the letters into brain waves and shoots them onto one's forehead through a similar, laser-like beam. So far, it has only appeared in the season 2 episode "Her Parents," where Jake used it to send a message to Lady Rainicorn's parents, Bob and Ethel Rainicorn. It has also appeared in the series finale "Come Along With Me", in BMO's cave atop Mount Cragdor.
Trivia[]
It seems that it can really hurt once the letter (in the form of a laser) is shot at the forehead.
The letter Jake wrote means: "To Mr. Rainicorn and Mrs. Rainicorn, Rainroad 47. Please come here one hour early for lunch. I don't have a pet turtle. From Jake." In Korean, it reads: "무지개콘 선생님과 사모님께, 47 무지개 길. 점심에 한시간 일찍 와주세요. 나는 애완 거북이가 없어요. 제이크 드림"
Cultural references[]
"Rainroad 47" could be a reference to the Mario Kart series, in which Rainbow Road is a race course.
Birthday Boyfighter •
BMO and Ice King's valise •
Breakfast Porridge •
The Cake •
Danny's boat •
Der Witz Und Seine Beziehung Zum Unter Bewussten •
Device for the Dissolution of Invisible Shields •
Dum Dum Juice •
Elk's Heart •
Finn's Vault •
Green Knight's Axe •
Gumbald's baseball caps •
Gumbald's goblets •
Gunter's puppets •
Invisible Shield •
La Femme du la Mer •
Love Bazooka •
Mechanical horse •
Megaphone •
Memory drive rocket •
Mr. Cream Puff's car •
Night Sword •
The Panzark •
Peanut •
Personal hover-platform •
Power-siphoning belts •
Princess Bubblegum's laser weapon •
Sledgehammers •
Techno-harpoon •
Warren Ampersand's rocket
