We've seen wine in a can and wine in a box. How about wine in plastic stemware? These were at Marks & Spencer and I couldn't help but chuckle at it...not to mention cave into curiosity.
It was pretty harsh and nasty. And the rim of the stemware was thick and cut at right angles, which physically made it a bit hard to drink too (Reidel this was definitely not!). But hey - in a picnic situation, I suppose that plastic stemware looks a bit better than in a juice box.