I see these water and nice glass and splash and fruit and etc. pictures everywhere. I have never attempted to do this, so it is a first for me. Using regular white paper and 2 flashlights with colored saran wrap as filters, I have achieved a noteworthy makeshift studio. I would rather do this in a clear toilet and do cake flushing shots as seen here:
If you have a clear toilet you are lucky. I wish I had that kind of money. I don't have any cool fruits to splash, so I used whatever I had. Anyways, here is a mix of what happened:
Nutrigrain Bar w/blue light
Calamansi
Edamane w/ red + green filters. Christmasy. One missed the glass
In-N-Out Ketchup.