Ideas for minigames

Hi, i'm developing a new server and new plugins. But i don't want to use common minigames, like bedwars, survivalgames, uhc, etc...
Anyone has some idea for a new minigame that i can start develop?

edit!

misreadthe titles! sorry... dontknow any ideas

Yes, the RushBrain, if you are interessed please goto in private message

spleef but mixed with parkour, with a timer for who can survive longest

How would it with 2 teams - each team is building an jump and run for the other team - the other team has to do it then. - Which team can do the jump and run more in 10 minutes?