Play tunnel
Blocks
Balls
Ride on toys
Outdoor toys
Playdough
Books

We're also getting a Bilibo for DD. She has zero interest in dolls (she has one), and she's getting a toy kitchen and accessories for her birthday in January.

You can also suggest clothes, bath toys, and needed items. We're also including new shoes as a Christmas gift, because she needs them (and honestly would probably think it was the best thing ever).

My 1.5yr old really likes things that are magnetic -- those Leapster fridge farm things, trains he can stick together, magnatiles, plain old animal magnets with a board (or fridge) to stick them on.

Lego Duplos can also start to be fun around that age. I found when they were little, my kids were more interested in the people/animals that came with them etc than in building elaborate buildings so a kit that has lots of those might be good (zoo, etc).

If you have a baby on the way, maybe a doll with stroller and lots of other accessories so she can mimic you?

Playdoh is also a good activity for occupying the little one when you sit nearby with the baby.

A play tunnel? That gets lots of use in our house, and is good for burning off steam if you are stuck inside. My 1.5 can play for a long time throwing balls in, crawling after them, etc.

Good luck with the baby! My two are 21 months apart, and I love the age difference.

We are starting to get asked what DD would like for the holidays. We realize that we do need more age appropriate toys as she doesn't seem to be entertained by the ones we have now. We plan to get her a play kitchen with play foods/etc. But, any other ideas for good toys for a 1.5 year old? We're expecting another baby next month, so toys that really occupy her imagination and attention are key!