Illustrator needed to do small, simple sketch style drawings (Up to 15)

I am in the process of finishing a short story (fiction) and need small illustrations (sketch/pencil drawing style in black and white) to sit under each chapter number. The following is the kind of style I am interested in:

http://www.istockphoto.com/stock-illustration-22765481-tourism.php?st=f66765b

There are 12 chapters plus cover page/end page and possible author page and the illustrations will be of different things from an Italian holiday including a pair of aviator sunglasses, a lemon growing on a tree, a mug of tea, a suitcase, a pizza... I may change my mind about a few of them so working with someone who is flexible and prepared to do a few extras and/or come up with suggestions and ideas is my kind of co-collaborator!

I am self-publishing this book as a preview to a bigger collection of short stories and so will be looking for an illustrator to continue working with in the future as well as link to in the ebook and on my blog (http://asthebirdfliesblog.com). New PPH-ers are welcome!

Look forward to reading your proposals!