Read this gorgeous picture book with my kids this week: www.amazon.co.uk/gp/aw/d/144725760X/ref=mp_s_a_1_1?qid=1412969399&sr=8-1&pi=AC_SX110_SY165 and was delighted to see both a mixture of races and genders including women driving steam rollers 
It's a simple picture book with moving parts I picked up for my 1 and 2yos but my 5yo was very taken too.
It was a delightful surprise and made me think a list of children's books and toys that go out of their way to challenge gender stereotypes in their illustrations and packaging would be wonderful.
Any other suggestions?