It is so sweet for you to have a surprise shower for the new baby. Boy, you sure limit yourself on ideas!!! Listen, she is still a baby. She may not be a newborn but she still has baby needs. She may have registered at Target or Babies R Us (the baby section of Toys R Us.)
I'm sure the baby probably wears 18 months size or will soon. Buy size 2 because gosh, most 1year old grow into size 2 someday!!! or size 3!
Even if she can walk, I'm sure the mother needs a good stroller. Get one with a cupholder for the child and mother. A good quality carseat is necessary.
I bet that sweet little girl is not potty trained so buy diapers, wipes, and a diaper disposal thingy. Get sippy cups with the no spill lids, larger size bibs, toddler fork & spoons, little plastic bowls and plates, training pants, crib bedding (not cradle), a mobile for the crib, waterproof pads for the crib, toys that attach onto the stroller and carseat, keepsake handprint cast kit, and a seat protector for underneath the carseat.
Toys: classic Disney princess DVD, simple wooden or foam puzzles, electric bubble machine, push behind type toys, electronic leapfrog or V-tech brand toys, musical toys, toddler songs type CD, wagon, Little tykes swing, wagon, Little Tykes Cozy Coupe (cute car they pretend to drive.), and little girl dress up clothes.
You have a huge list of possiblities!