Giving Seattleites something to look forward to when the clouds roll in, Peregrine Church and his merry band of artists spent much of last winter creating what they call Rainworks. Using a hydrophobic substance, they sprayed designs on the sidewalk that become visible only when wet. (The safe, biodegradable coating wears off after a few months.) This fall, the group raised enough money via Kickstarter to begin distributing the spray to the public, so all can join in the fun. Because no matter how impatient we Westerners are for El Niño to arrive, the ensuing gray, gloomy weather might eventually feel a bit, well, gloomy. $29/spray and stencil kits.