Attach wood table top to wrought iron base?

I have a wrought iron table base that I would like to create a mosaic top for. When I purchased the table it had a mirror top, with pieces of wood in the form of a square to keep it secured. It was not the original top and eventually broke. This is a circular base and the legs attach to the side instead of in the middle. Attachment 44612 (http://www.doityourself.com/forum/attachments/lawns-landscaping-outdoor-decor/44612-attach-wood-table-top-wrought-iron-base-img_20150109_083651544.jpg) Attachment 44613 (http://www.doityourself.com/forum/attachments/lawns-landscaping-outdoor-decor/44613-attach-wood-table-top-wrought-iron-base-img_20150109_083656820.jpg) Attachment 44614 (http://www.doityourself.com/forum/attachments/lawns-landscaping-outdoor-decor/44614-attach-wood-table-top-wrought-iron-base-img_20150109_083700004.jpg) Attachment 44615 (http://www.doityourself.com/forum/attachments/lawns-landscaping-outdoor-decor/44615-attach-wood-table-top-wrought-iron-base-img_20150109_083712950.jpg)