Have a drink but remember to take it with style. Idea for this "mod" spawned from Bit-Tech’s forum. People were talking about coaster that could have lights and ways of doing it. It didn’t took more than 500ms when I imagined myself doing this based on GlowPad technique but with internal power source. No point on having coasters with power cords in my opinion. Anyway, here is a small tutorial that I wrote to show you how you can do these yourself. I made this prototype in around two hours so this alone proves that this mod isn’t that hard to do. And one more thing; I don’t try to encourage people to drink alcohol here. These coasters can be used with tee cups etc. as well.