crak wrote:
I grab some bricks glue them to a $1 glass piece from a frame and make a lego border and hope for the best.
As I previously learned from another thread, the silicone will bond with the glass, so that is probably not the best choice for creating the mold.  You could use mold release, but you would need to be very thorough with applying it since you want to make sure that all the glass is coated.  Fortunately, I use acrylic sheets and avoided this potential problem altogether.  12"x12" acrylic plates can be purchased at Lowe's for $2 each.
  

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