Silver Birch Press has posted an anthology call for a "Nancy Drew Anthology". They're looking for poems, shorts to 2000 words, essays to 1500 words, and creative non-fiction to 2000 words that celebrate Nancy Drew. The deadline is April 30 and payment is 1 print copy. You can find the details here.
Yes, it's basically a non-paying market but I know there are a lot of Nancy Drew fans out there who might enjoy participating in this one.