Little Lisa's Recycling Center produces blueprints now
http://forum.ea.com/eaforum/posts/list/10414306.page
Forum Discussion
It gives 450 blueprints every 4 hrs (for now). When the original monorail event ended, it switched to cash and XP, but just reverted to blueprints and XP. No idea how long that will last. Bit of a waste once you've collected all the blueprints you can for the week.
