Very interesting concept. Making a wine rack puzzle. The concept seems very Ikea to me, but nicely executed.
The wine racks are interlocking jigsaw puzzle pieces, so you can choose just how big your wine rack gets. Made of transparent ABS polymer – 9 bottles per racks. 3 colour options.
Via gadgetryblog

I am surprise at your comment about clear plastic! I guess you are not a modern guy and never visited Kartell or know great european designers products made in clear plastic. Check it out, you might change your opinion.
[...] If you have more than 4-6 bottles that you want in public view, why not get a wine rack that expands with your collection? These interlocking plastic puzzle pieces come in a variety of colours, and an infinite number of units, each holding 9 bottles. My only wish is that they weren’t made of transparent plastic, as they come off on the cheap looking side of things, but that doesn’t matter nearly as much if your decorating style is art school chic. (_) [...]