I took part at the Guerilla Knitting Award 2012 and submitted this transparent.
It was not under the first ten winners and so I feel free to show it.
For English readers: “verstrickt” has ambiguous meanings: it means ‘entangled’ or ‘involved’. Or, in the nearest way: ‘knitted up’.

The idea to make such a huge exhibit came to me when inspecting and sorting my stash. Years ago I inherited over 15 kg of yarn and didn’t dare to throw away what I didn’t want to use. Some kg went to schools and kindergardens but even they wave aside when they see me coming with my boxes. They have more than enough for years.
When I inherited several knitted (but not sewn) sweaters from my late Aunt the pile of yarn even grew.
For this transparent I spent more than 6kg of yarn of all types.

The material is from a lot of leftovers: old sweaters I unraveled, yarn I tried to work with but with awful results, leftovers which weren’t useful for anything (no sockyarn) and so on.

I worked one week on my knitting machine and then sew it within 4 hours.
When it lay in my living-room it seemed to be very large but after fixing it at the bridge on a stormy and rainy night it looks not very impressing. I mounted it with over 20 cable fixers so that it didn’t cause any danger. Unfortunately the wind always blew up the colored pattern below the writing, the nicest part of the transparent.

Note: if you hang something en plein air, line it up. Otherwise you neither see the colors nor the pattern.

edit 1: it had been hanging there for three days.
edit 2: The bridge is over Bundesstraße 3 between Freiburg and Bad Krozingen.