In a weird confluence of work and play, I found
this site. it's basically an adult version of Kickstarter. Basically, you pitch a project and solicit money to create it, as well as solicit expertise and find partners into the same sort of things. Note that it's "pitch something you will do/make" not "pitch something that you want to see". There are no Process-oriented projects on the site, but the concept is probably worth checking out.