I said let's do it too! If you ask what's in that picture look at the end, there you see how I took that picture. I used a bicycle light, a rear stop, a phone with a camera and a shower: Unfortunately, the light was too weak to freeze the water in the picture and in the future I will look for stronger lights. I used a simple phone, a few scotch rolls, a glass to put that upstairs stop red light, the bicycle white lamp, the water shower from which the water flowed, and of course the phone with which I took the pictures. I'm just waiting to try this experiment again with stronger lights, and I'm pretty sure I'll take amazing pictures with that. I can not say that this is bad but it can be better, it can always be better.
Here are the things used but less the phone because I used it to make this picture