About the glass slumping - Look up Fuseworks microwave glass kiln. Will=20 handle 3" diameter they say. You can get just the kiln or a kit with=20 refractory paper and etc. I have no experience with this outfit. About the wireless charging - can you make the thing bottom heavy so it=20 will "know" the proper orientation for charging? Then you only need one=20 coil. Looking forward, Al Shinn On 2/25/2013 9:23 AM, piclist-request@mit.edu wrote: > Subject: Re: [EE] Suggestions for wireless energy transfer requested --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .