Took out me macro lens for a spin today...in our bathroom!
I setup my crappy old speedlite on a stand and took a picture of a water droplet from our tub.
Though my speedlite doesn't have high speed sync, I had to just use natural lighting coming from our bathroom lights.
Of course I had to increase my ISO to 1000, so I can get that 500th of a second shutter speed.
I really turned out ok.
Although the shot came out to be kinda noisy.