For the blue theme, I have something unusual - Blue (Super) Car.
The full post is here: https://peakd.com/pobphotocontest/@dejan.vuckovic/pobphotocontest-blue--supercar
but let's briefly repeat what kind of blue beast it is:
For those who are not sure, this is Trabant, one of the legendary products of the former East Germany. It had a two-stroke aluminum air-cooled engine of 600 cubic centimeters with a striking 19 kw (26 horsepowers) and a top speed of 100 km/h. The body was made of a composite of cotton fibers and phenolic resin called duroplasty. Since both components of duroplast were by-products of the textile and paint industry, this car was the first car made from recycled materials! Last but not least, he weighed only 615 kg.
Thank you for the fun contest, and all the beast!