A designer strolls around a flower shop in search of inspiration. Two innovators brainstorm how to reduce our carbon footprint. An artist uses spray-paint in hopes of making someone smile. Two literary enthusiasts craft scripts for a podcast about zombies. Husband-and-wife bandmates soar as they write new americana, folk, rock songs. This diverse group of Chicago dreamers and doers have one thing in common: They each asked the public to invest in their ideas through online start-up campaigns.