Boulevard Smokestack series are pretty cool..they are embossed with "BOULEVARDE" if you care about that. Tank 7 is great and Saison Brett is a good intro to sours..Harvest Dance is one of my favorites as well
If you're looking for empties you can buy, all the neat bottles are spendy, but the 500ml 'Euro' style or 375ml 'Vinnies' are probably what you're looking for. There aren't any other options I know of.
I Love me some HOP STOOPID, I have a lot of toughs bottles I've reused.
I have a few friends that brew, and I'm just looking for that little touch of something different to make mine unique. I found a cool place online to get custom bottle caps.
This picture is of a regular 22oz that I get at my home brew store, and the other is of a cool one I bought of a specialty beer.