Yes You Can!!
Yes you can, I just did it with my bike. I basically cut my fender off (fender eliminator), then I took the bulb and sockets out of the turn signals, and put them in the holes in the pods on each side of the brake light. I taped them in, but I'm sure you could find another way, I just hated the huge stock turn signals, and the fender, so they had to go. I then used a left used a left over mount off the fender, and mounted the license plate on the now minimized fender. I have a picture of my bike on my profile if you would like to look at it, it's not a dead on picture, but you can see the fender eliminator. So yes it is possible, and free if you want to spend the hour or two to do it. Plus it makes the bike look tons better, and more sporty. I'm also planning on getting flush signals for the front to complete the look.