I haven't worked on the fic for this au but trust me my ut spamtenna have been haunting my brain. ESPECIALLY Chiffon/Scrapton.
In the au, cause of Tenna's staticky speech, he accidentally called Scrapton, Rapt... But it came out as Raph and it stuck.
Fun facts about Scrapton and Amalgamatenna:
When Scrapton gets hurt or there's something wrong with his body, his feathers grow in black in that area. It's like a scar- which is how come he has that marionette like pattern and that line on his neck.
Tenna absorbed some dust from other monsters however kept most of his original shape and form except the junk and plant debris in the area when he reformed. This affected his memory.
Scrapton is almost always concerned for Tenna, especially since the bigger monster's condition makes it harder to move.
Scrapton is the only one from his flock that can't fly. This has been the case since hatching. This made it more difficult to deliver the mail for him.
Scrapton had a beautiful voice before the incident. Tenna loves hearing recordings of him singing.
The grape leaf on Scrapton's uniform represents how far and wide his flock delivers the mail. Like an unchecked grape vine, they'll go to the ends of the earth to reach other monsters. His uniform is the shoddiest made.