Firstly, I found a dark grey and black striped t-shirt dress by a Scandinivian label, Resterods. So I was ideally looking for white and black, but I thought I'd at least get a lot of wear out of this one (ignore the wet hair and creases in the dress!)
Then on Friday, in H&M, I found this jumper dress, which is much more striking and closer to the ideal. I wasn't 100% convinced by it (although I do quite like this picture) but the OH's reaction meant I'm keeping it. He said I looked like a dancer from "Ready Steady Go". I don't know if that was compliment or insult, but that was certainly close to the desired effect.
So for now, I think my desire for stripes is sated.