Down The Rabbit Hole
According to her wiki article and the adaption and novel, Alice got her human altform from an animatronic Alice In Wonderland display at a theme park. How would Sam react if he encountered said animatronic display?
P.S. Mods? Maintainer? Maybe the tags need a little cleaning again? I got multiple movieverse, 2007 and Sam tags when I went to tag this post, and I don't know if RotF has it's own tag but I gave it one anyway.