Good Questions: Gender Neutral Doll House?

Katie sent in a good question: My son (3 1/2) has recently become interested in a friend's doll house. Everything I have seen in the stores is so girly looking. I also have a daughter (1) who would be interested in playing with it, but puts everything in her mouth. I am looking for suggestions on a gender neutral doll house that is made with nontoxic paints/finishes.

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with QUESTIONS in subject line to:
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I don't have a playroom in my house, so something that can blend with adult decor would be great also! Thanks for your help!

Our first thought was a wooden doll house like the ones shown above from Monkey Bean Toys or maybe this Design-By-You house which we posted last week., but we're hoping to get lots of suggestions for Katie. Please add yours to the comments below...