On Friday, I attended a workshop with the Photography society and created this Cyanotype.
The process was very interesting and simple (once you have the chemical that causes the reaction), which only takes about 20 minutes in total to create. I also find the colour interesting, which you can manipulate in the process too.
Essentially, we collected natural objects and laid them onto a piece of paper covered in 'Ferric Ammonium Oxalate' and pressed them down with a piece of glass. We then went outside for the UV rays to make the reaction with the solution. You can see this happening as the paper changes from yellow to a greeny-blue colour. We then rinsed the paper in water and this is the end result.
Overall, an interesting process that I would be interested to try again if I had the correct equipment.