This image has a lot of splashes from liquid and a couple fingerprints. All three of these pictures are of my water bottle.
I used a box that already had a cut in it and then took a can and poked a hole in a part of it and put paper over it with tape over 2 sides of it. While taking the photos I needed to consider the lighting, position of camera, and how long it needed to be left in the mixes in the dark room. I put the negative sheet under glass and the blank sheet on top then flickered on and off the lights and then did the same things in the dark room.