We took Madison on every ride that didn't have a height restriction.
MK-Everything in Fantasyland, Adventureland, Liberty Square (1st time Madison laughed was in the Hall of Presidents!), Country Bear Jamboree, Buzz, Carousel of Progress, Railroad, and I think that was it.
Epcot-Living with the Land, Maelstrom, Rio del Tiempo, Spaceship Earth, Universe of Energy, Living Seas/Turtle Talk with Crush (wasn't there at 3 months, but we took her there at 13 months and I would have done it at 3 months too)
MGM-Playhouse Disney, Beauty and the Beast, Fantasmic, Indiana Jones, Great Movie Ride, Backlot Tour, Millionaire, Muppet 3D
AK-Safari, Tough to be a Bug, Triceratop Spin, Tarzan, Lion King, Pocahontas, Flights of Wonder, Maharajah Jungle Trek, Pangani Forest, Rafiki's Planet Watch.
I think that's everything, but don't have a map in front of me so I could be missing something.
It's probably easier to list what she didn't ride:
MK-Space, Splash, and Thunder Mountains, Astro Orbiter, Speedway, Goofy's Barnstormer, Stitch's Encounter (or whatever that is called)
AK-Kali River Rapids, Dinosaur, Primeval Whirl
MGM-RnRC, ToT, Star Tours
Epcot-Test Track, Mission Space, Soarin' (wasn't there at 3 months, but was there at 13 months and she still can't ride it)