Keeping motivated under a lockdown does mean that you are ready to try out new ideas. I have always been fascinated by oil and water pictures so with time on my hands I decided to give it a go. What you need is a macro lens and off camera flash. Then to get a big bowl of water on top of some colourful paper or fabric. Set up the camera using a tripod so that is is over the surface of the water. Start dropping in some Olive Oil and/or washing liquid. Then start taking pictures. Here is a nice link from PhotoCrowd
There is still some work to do after taking the pictures and opening up Lightroom initially the pictures will look a bit dull. Look at that histogram and ensure you have a good distribution and that you use the highlight and shadows sliders wisely. The exposure should be adjusted and then you may need to push the saturation up to around 40 points on the scale. Then after some cropping of the picture a few of the final results are shown here. This is definitely a project that I will be going back to at a later date.