I've found a place that does prototype circuit boards for very cheap, and I'm afraid I'm very tempted to go a bit overboard on blinkies as a result. I've already ordered one prototype and I will probably do at least two more. I don't know how many will go to production. I also think I will do a few demos on using modules that are readily available on eBay to make one-off blinkies. I think people like soldering together kits, but I also would like to see more people just coming up with stuff on their own. So many people are so much more creative than I am, I'd love to see what they came up with.