Becoming a Hololive Mama is the illustrators Holy Grail now apparently. In Comiket Hololive doujins were extremely popular with some mamas selling out within an hour of doors opening. Kakage says that some illustrators would even be willing to do it for free because it's so lucrative now.

https://youtu.be/dAyw_7eroCg

Who should be the next Hololive mama? I think Cover should get Takashi Takeuchi on board to design a proper Saberface