1. Create a book trailer. Check out this workshop to get you started.
2. Make a character collage. I did this for a costume design class I took in college. We used scraps of fabric, ribbons and other embellishments to create an abstract collage for each character. Think of what colors and textures fit your character. Is your character lace and floral patterns, or chocolate brown and corduroy? Don’t limit yourself to just fabric. You can incorporate foil, wire, buttons, pretty much anything that you can glue down onto your collage!
On a related note, Paperback Writer has a post on creating character crafts.
3. Make an ATC (Artist Trading Card) inspired by your fiction.
4. Walk a mile in your character’s shoes. If the protagonist of your medieval mystery is a blacksmith-detective, take a class in beginning blacksmithing. If your character likes to bake cakes when she’s upset, make a cheesecake or a tiramisu. If the hero of your romance is red-haired with an Irish brogue, buy a plane ticket to Dublin look at coffee-table books about Ireland.
5. Find some images of where your story takes place. Does your baker live in an ultra-modern minimalist loft in NYC or a rustic country cottage in Maine? Does your fantasy take place in a warm Mediterranean-esque country with olive trees or a cold tundra? What does your character see outside his window? This or this or this or something else entirely?
6. Speaking of Ireland (*wink*), find pictures of where your story takes place. Does your baker live in an ultra-modern minimalist loft in NYC or a rustic country cottage in Maine? Does your fantasy take place in a warm Mediterranean-like countrys or the tundra? What does your character see outside his window, tent, caravan, car? This or this or this or something else entirely?
7. Think of a material object important to one of your characters or your story. Describe it in words, draw it, make it.
8. Mindmap your story. Write your story name in the middle of a blank sheet of paper and write down whatever associated words come to you. This is a good way to uncover themes and recurring imagery.
9. Create a playlist for your novel.
Edited to fix the numbering, because I cannot count, apparently!