These are relatively new to the Rejuvenation line. They currently offer 8" and 16" versions of the classic globe light. They look great, are available in white or brushed aluminum. All the products made at Rejuvenation are top notch quality, but we needed about nine for our house and at $140 each $1,260 seemed kinda high. And we wanted to go with 10-inchers anyway.
1- Take 'em apart.
NOTE: There's a sliding stopper thingie with a tightening screw that's attached to the stock teacup-ish canopy. You'll need to detach it in order to use it with the new configuration. I used channel lock pliers and my awesome, herculean strength to tear it away. (It was really pretty easy. Here's a pic.)
3- Buy new canopies. This can be tricky. I wound up going to the lighting department at Hippo Hardware in Portland, rummaging through a few boxes of old light fixture parts and found three that were exact matches, and two more that were close.