Mackenstien is a very tiny baby harbour seal with very thin front flippers, his eyes are almost the same as Fluffy and Bufu's, but the only difference is that they have a black outer ring and a glittery light blue inner ring. Mackenstien also has a medium blue hook on his head.
Mackenstien (often referred to as Sealnyan) is constantly in a sugar/caffeine rush, crashing around and hanging his head on a wall. Banana seal is very fond of Sealnyan and started making plush toys of him and whenever two plush owner seals meet eyes, they bring out their Sealnyans and get them to clash heads while screaming Sealnyan! blepboi sealy win again