Along the same lines as the scaled Periodic Table, Elemental Cartograms by chemistry professor Babak Sanii and his students lets you make your own scaled Periodic Table of Elements. Simply edit the provided spreadsheet, upload, and you’ve got your cartogram.
Normally, I’m not so thrilled with cartograms because of how they mess things up with shape, but that’s with geographic maps. You don’t have to worry about preserving borders so much with the Periodic Table.
Make your own or check out examples of the cartograms in use.