One tip I learned from the Bay Area Maker Faire earlier this year is that everyone is really excited about blinking LEDs. I know, it sounds trivial, but really, everyone loves it. Last time I just accidentally packed a hundred self-flashing and RGB color LEDs, together with coin batteries in my baggage. While setting up the table, an idea popped up in my mind that we can distribute them as free gifts at the faire. They are really cheap, so I don’t mind giving them away. What I didn’t foresee was how popular this was: the one hundred packets were gone almost in no time.
So this time, I am better prepared: I brought a bag of one thousand self-flashing and RGB color LEDs, together with one thousand batteries! We printed instructions so people can learn how to make an LED throwie on their own (basically sandwiching a coin battery in between the two legs of an LED). We distributed these as free gift to people, but told them it’s only free if they make one themselves (instead of taking away our demos ) This was a huge success: I estimated that we gave away at least 250 of these.