One thing we've run across with Rory wearing cloth diapers, is that regular pants don't fit her. She's wearing 6-9 month pants so they can fit over her big bum. It' a bummer (ha, get it?) because she can't fit into little baby jeans, and babies in little baby jeans are adorable!
Anyway, I found this pattern for "Big Butt Baby Pants" on Made by Rae, and decided to go for it. Yes, I had to pay for the pattern, but I've already made 3 pairs of pants and I'm sure will make plenty more throughout her first 2 years.
Here's the first pair...made from some cute vintage fabric given to me.
Sorry about the picture quality. Pictures before 7am don't always work out very well.