Doodlers who get around by bicycle: Start doodling about your bike ride! Do-gooder website GOOD wants you to “pick a day and avoid using any kind of carbon-burning vehicles (cars, buses, mopeds, etc.), and then draw a doodle that illustrates your experiences.”

If you celebrated Weekend Without Oil last weekend, you can just get doodling about that green experience. Your doodling reward: A chance to win a GOOD T-shirt and free subscription to GOOD magazine.

To get you started, I’ve found a couple green travel-friendly doodles to inspire you:

>> Look ma … no gas! This T-shirt’s doodle design has cute, Dr. Seuss-esque whimsy — and can be yours for $20. Proceeds go to C.I.C.L.E., a pro-bicycling nonprofit in Los Angeles.

>> Bicycling Cop Dave: This online graphic novel has as its hero a cop on a bike, “patrolling the underside of gentrification."

>> Kenny Be’s guide to summer’s terrifying two-wheeled creatures. Judging by the comments, some cyclists take Kenny’s hilariously exaggerated caricatures of cyclists a bit too seriously; others are able to laugh at their own foibles.

>> The Boys and the Subway. This last one is not about bikes, but is about another more sustainable form of transportation — the New York Subway! “My sons Arthur, 5, and Gustav, 3, are obsessed with the New York City subway system,” reveals The New York Times’ Abstract City illustrator-blogger-storyteller Christoph Niemann — who goes on to illustrate his sons’ love for the subway system in a way that'll make you want to memorize your local subway map, too.

The opinions expressed by MNN Bloggers and those providing comments are theirs alone, and do not reflect the opinions of MNN.com. While we have reviewed their content to make sure it complies with our Terms and Conditions, MNN is not responsible for the accuracy of any of their information.