Hobbies are known for being money drains, but they don't have to be that way. Find ways to turn your favorite pasttime into a source of income, and get paid to play.
Need a few ideas to get you going? Then consider these:
Art/Crafts
    Teach art classes, either privately or at a local craft store
    Sell your work at craft shows or on etsy.com
    Sell your work in a gallery
    Design pieces on commission
    Design and submit projects for publication in books and magazines
    Enter your work in contests with cash prizes
    Do graphic design work
    Paint business windows for the holidays
Photography/Videography
    Get work as a freelance newspaper photographer
    Sell stock photos online. Try: Shutterstock, fotolia, and dreamstime
    Sell your videos online. Check out: Video Sharing Websites that Pay
    Sell your photos to magazines
    Do wedding and event photography/videography
    Teach photography/videography classes
    Turn your images into cards, and sell them
Sports
    Umpire/referee
    Coach
    Be a scorekeeper
    Be a statistician
    Caddy
    Become a personal trainer
    Become a fishing guide, hiking guide or river guide
    Teach others your sport
Taking Care of Animals
    Walk dogs
    Pet sit
    Offer grooming services
Music
    Give private lessons
    Perform at restaurants, weddings, bar mitzvahs and other events
Cooking
    Teach cooking classes
    Sell your foods at farmer's markets and craft shows
    Cater
    Offer yourself as a personal chef
    Take orders for birthday cakes
Travel
    Sign up for hotel and resort mystery shops
    Sell your travel articles and photos to magazines
Fitness
    Teach exercise classes
    Be a river guide
    Lead hikes
    Teach rock climbing, caving or other extreme sports
    Be a tour guide – all that walking is exercise!
    Become a life guard
    Offer yourself as a personal trainer
Computers
    Repair computers
    Build and sell computers
    Become a computer consultant
    Design websites
Gardening
    Hire yourself out as a gardener/ landscaper
    Sell the extra fruits and vegetables from your harvest
    Sell compost
    Can foods from your garden, and sell them at the farmer's market
    Help a farmer harvest his crops
Writing
    Start a blog
    Sell articles online or to magazines
    Enter writing contests with cash prizes
    Apply for a writing stipend
    Write advertising copy for local businesses
    Produce and sell an e-book
Shopping
    Become a mystery shopper
    Work as a personal shopper
    Shop for things to resell at a profit