Sorry I haven't been writing lately, I have been out of the country. Well anyway I am a new member here and before I give a pic, I need to know how to postt a pic. I know many of you have been doubting my post but I can understand this. I had to use a magnetometer to make sure that the magnetic field was strong enough first and then I had the challenge of making the coaster. Belive me, this was no easy task, I had to do a lot of math and estimating to make this coaster. I will post a pic as soon as possible. I in fact doubted the coaster would work. It is by no means smooth, or consistant. I apologize for your waiting and will be in contact soon. Just give a week or so to take the pictures, get them developed and posted.