I'm grateful my kids still let me pick their Halloween costumes (with some input from them). This year they/we chose Alice in Wonderland.
It's not as fun to dress up a baby who's not sitting up yet, but Felix makes a pretty cute white rabbit!
I found Lulu's Alice dress on Amazon, found thrifted shoes, and tights. Abram's hat is from Amazon, everything else is thrifted. His jacket is a girl's size 6 blazer.