I love my finger paddles.  I use them all the time.

Great not only for sculling but speed development as well, we called these things "speed paddles" when I was an assistant at the Big Ten level.  Very good for fast 15's, 20's or 25's with fins or no fins, very good for blast type work, very good for sculling.  

The trick is not so much finding creative ways to use these paddles...but the trick is more so getting your athletes to understand what happens when they do use them.  Are they a technician of their own stroke?  Do they feel the pressure on the fingers and can they move water with their tips?  I love using these with a snorkel and a buoy and seeing how fast they can scull with these with a flat body.  Also very good to use on the power towers as you can scull with resistance.  Not sure what that does exactly but i am sure it doesnt hurt the catch up front and can only make it better

I love my new finger paddles.  They took a little getting used to, but once I got the hang of them, they were great.  I still get a really good workout with them, but they don't hurt my shoulders like the regular paddles do.  I feel like I am flying through the water with them.