Unusual greenhouse designs

Long shot as I couldn't find any on Google, but does anyone know a company that supplies unusual greenhouse shapes?  I'm looking for something to fit into a corner, ideally with two long walls (forming the two back sides, and maybe 4 panels in a "quarter hexadecagon" format (If you're wondering, yes I did have to look up what a 16 sided shape was called!)

Thanks in advance in case anyone has seen anything like this.  May save me from having to design and build it myself!

Thanks for the link - I think I may have to resort to building it myself though, a job for spring probably.