rocks
Ally currently has an obsession with rocks. She can't walk past one without picking it up. I made the mistake of taking a walk with her the other day, and letting her walk instead of using the stroller or wagon. It took forever to get down the block. She had both hands ful of rocks, so she made me hold them for her. Then she picked up more. I love hearing her say "rocks" too. It's so cute. It sounds an awful lot like "walk" though, so sometimes it's hard to know which she's saying.