You want to take photos of raindrops but there is no rain? There is the most simplest trick that you can do, create your own raindrops. To do this is pretty easy, just take your old spray bottle from window cleaner and fill it up with water. After that, just spray it on leaves and flowers. The biggest challenge is not creating raindrops, it's taking photos of them. For that you need imagination and light source of some kind. You can use flashlight, camera flash, external flash, led on your phone. There is a lot of alternatives to that.
I tried today to create some good photos for you. First, some simplest way to take photo of flowers, from above. It looks nothing special but when you add your own light, I used external flash for that, you can create really moody photo with strong contrast so you can show details of every single water drop.
Next thing is same flower but from different point of view. To me, this is much prettier photo than first one. Still moody even tho contrast was reduced by a lot.
After that I found some little leaves of some plant where water drops stuck pretty well and it looked amazing. This single water drop is size of a rice, even smaller than rice but I can't find different example of size. This first photo has pretty high magnification.
This is the same photo as previous but with smaller magnification, just so I can show you how much I can get close to subject with my lens that cost overall like a some meal in McDonalds. :D
Roses and water drops are simply meant for each other. Color cast on water drops is just spot on. That redness created such a great isolation and detail of droplets.
If you don't have camera with you, you probably have phone and its camera. You can use some magnifying glass in combination with your camera to create better macro photos.
Results are not that great as with DSLR but still looks fine. It's not great magnification but still it focuses closer than without magnifying glass. So that is a little hack for you who wants to take macro photos with their phone.
For the end, I wanted to share with 
This is their leader. :D
