Here's mine, thanks Jack! These boards are a lot of fun. I took mine to work and everyone there got a big kick out of it.
Regarding the kit: It's very easy to assemble. It took me about 10 minutes. The PCB is very sturdy and the silkscreen printing is clear and sharp. The hardware is excellent. I didn't expect a battery holder or power terminal blocks, but they were included. Everything you need is right there in the kit. The instructions are more than adequate with photos and wiring diagram on the downloadable PDF. You can add the headers for ICSP programmer if you want to tinker with the code, or re-program it all together. Jack has put the code up on GitHub for anyone who wants it. Nicely done Jack!
The use of button input and sleeping the ATtiny85 are nicely implemented in the code and I learned from reading through it. But there are already several different blink patterns with different timing, so I haven't felt the need to tinker with it yet. It's really cool as is!
I've ordered more of these as gifts for friends. I have several friends that are near impossible to find holiday gifts for. A couple of them are into electronics too. So these make a unique and affordable gift that is certain to entertain.
Lastly, Jack is a pleasure to deal with. Many of you already know of him from his posts in the forums here. I have asked Jack a couple of follow-up questions regarding things I didn't understand (in the microcontroller forum) and he went out of his way to help me. Thank you Jack!
Here is a short video I made with my iPhone that shows some of the blinking patterns. You simply press the button to change the pattern, which I do several times in the clip. Press and hold the button to power off, or it goes to sleep after 5 minutes: