For a (currently) child-free guy Josh Rubin has cultivated some very good sources for cool high chairs. (Sorry, fellas--and ladies--he's taken.)
As promised, Josh posted details on Nest 2, the upgraded version of Sally Dominguez's modern-friendly high chair. New features: there's a removable tray, and the base converts to child-size lounger once your kid upgrades to a normal chair.
The Nest comes in black or white, with the promise of an unspecified third color option later this year, and possible limited edition colors later on. As if this won't be distinctive enough for you. It's available online at Mozzee for £255 (shipping to the US is £50.)