King and Prince of the Black Puddle (TLH x Courage the Cowardly Dog)- Lincoln and Luna ran away from their home after hearing their  sisters talk about them so Lincoln and Luna ran away but then they were captured by a sea demoness named Queen of the Black Puddle who need a king and her sister need a prince they agreed and they became rulers of the kingdom.  Pairing: Lincoln x Princess of the Gray Puddle (My OC) and Luna x Queen of the black puddle

2) Going Ghost - (TLH x Danny Phantom) Lisa made a new machine that can make ghosts come to the world of the living much to Lucy delight but, after a malfacturing problem it caused Lincoln, Luna, Luan , Lucy and Lisa to transform into half ghost just like Lucy's idol: Danny Phantom.

3) Ms. Strange- (TLH x Marvel) Dr. Strange needs an apprentice to help him with magic and he's interested in Lucy Loud and took her as his apprentice.

4) Dark Spectre- (TLH x DC) Lincoln saved Luna's life from getting shot but, only for him to get shot caused him to be in the hospital. Enraged Luna wants revenge and justice she get visit by a spirit named The Spectre who needs a new host and chose her to be that host so he enters her body and thus Luna became The Dark Spectre who seeks justice from those who hurt innocent lives.