120 in a 35mm Patterson tank.

I thought since the Patterson reel can expand to accept 120 film I could use my little single roll 35mm tank. So I loaded a roll, dropped into the tank and sadly discovered the light proof funnel wouldn’t fit. So I thought for awhile and decided to go to my closet, put a blanket over my head, remove the lid and pour in 500ml of developer, then replace the lid, and use inversion method instead of swizzle stick.
So far it works fine.