Drapestyle sells a geometric almost identical to Imperial Trellis, a relative bargain starting at $220 per panel,but it was still more than I hoped to spend.
I ultimately decided that these would be too much pattern for the windows in those rooms, but still hoped to use it on pillows or an accent chair. The decorating Gods had different plans, though. I was browsing through Z Gallerie today looking for a few accessories. I'd once gotten a glimmer of hope when an online search showed that Z Gallerie had a very Imperial Trellis-like line of drapery panels and throw pillows. I was let down to discover they had carried it very briefly and had since discontinued it (amidst some copyright claims as I understand it.) So imagine my joy on seeing a pair hanging in the store today! They were the wrong color but the saleslady tracked down a pair in chocolate and ivory at another store, and they are on their way to me, where they will hang on the windows in the study. Not for $600 a panel, not for $220 a panel, but for $25!
Z-Gallerie's "Tango" Panels