Creative reflection photography is a great way to add an extra layer of interest to your photos. By capturing the reflections of drinks in different surfaces, you can create some really eye-catching images. Here are a few tips on how to get started.
First of all, think about the story you want to tell. The reflection you’re going to make doesn’t have to be complicated, but it has to be connected to the whole scene.
I think the best way to come up with an idea for a shot like this is to think about your character. This is your hero.

You don’t have to know how to draw in order to make a sketch. My sketches are very primitive, but still extremely helpful
To make a creative reflection in a coffee cup the most important thing we need is a large source of soft light.
It can be a softbox or a big diffuser. Or you can use window light, passed through a white cloth. This get rid of the reflection of objects in the street.

If you prefer shooting with natural light, find a place where you can get a soft shining reflection in your cup that looks like this
To make a template for our reflection we need a sheet of thick paper and a layout knife (more about that later). And surely we need a cup of tea or coffee and some additional items to match your story.
If you have a reflection of a sea horse, stick to sea-themed props, pick a blue ceramic cup, add a hand-drawn treasure map, some sand and a couple of seashells.
In my case, the predatory plant silhouette works with moss, fallen leaves, and some mushrooms.
And last, but not least, you will need a camera with any lens suitable for still life photography. I favor 105 mm. You will also need a tripod to free your hands and concentrate on composition.
Cut a form of reflection you want to get from paper. It’s best to use simple forms for the first try (stars, heart, airplane). You can try more complicated forms later (a tree branch, octopus or even letters).

Use templates like these to get light figures in your cups

Or use paper silhouettes themselves (not holes they leave in the paper) to get dark figures like this blackbird

Use thick paper for your templates, surprisingly, it will be much easier to cut (it won’t tear or get crumpled up)

Make templates with patterns and use them multiple times
Put your camera on a tripod, choose the angle that makes you able to see the surface of a liquid. After that arrange a composition with a cup and objects related to your reflection.

I decided to focus on the reflection and keep everything simple
You can use any lighting scheme you like. You need to have a soft light right above your cup, so it could make a bright spot on the surface of the coffee.
If you have only one light source, a big reflector above the cup will also do the trick.

Make sure you can see a nice light reflection

You can fix the template steadily with a clamp or simply hold it in your hand.

Here’s a key light on the right side. It gives strong shadows I found quite suitable for an image with a space theme. Fill light is on the top. It provides a reflection

Frontal light kills all the shadows and makes the image look flat

You can play with light, making it go through glass bottles. This way you can get beautiful flares
You can adjust the sharpness of the edges of your reflection in two ways. First, you can move the template further or closer to a cup.
The closer you are to a cup, the sharper reflection you get. I prefer slightly blurred edges. You may want them to be strongly blurred or extremely sharp.

Find the balance between the sharpness of the reflection and the objects around the cup
Put the list of paper with a cut figure between the source of soft light and the cup. This way you can see a silhouette in the reflection.

I’m using Wimberley Plamp II PP-200 to keep my template in place, but holding it with your hand in perfectly fine too

With the right size template, this effect should work completely in-camera, but sometimes reality ensures and you can get your hand in the frame. For these cases, there is always Photoshop, where you can use Layer Mask and a soft brush and in two minutes get a perfect image you wanted!

The image during the shooting…

… and at post-processing

I poured some water on my background, so I could get a reflection on it too. And later I decided to sprinkle it with water, so I got some pretty raindrops
If you need to get rid of paper that got in the frame, combine a shot with a reflection and a shot with a clear background using Layer Mask.
Hopefully, you got the effect in-camera and all that remains is to adjust the tones and enjoy the finished picture.

Final image with a predatory plant!

Create more intricate and complicated silhouettes

Find an interesting theme

Create a reflection outside the cup