Another favorite of mine is the Rocket Bobber
http://www.tackle2000.com/
One of its best features is that it has the spring loaded clip on the bottom like the old fashioned round bobbers. It's quick to attach as a fixed float or a slip float. I have a couple rods already set up with a bobber stop and a bead so I can use them with the Rocket Bobber as a slip float or take the Rocket Bobber off in a second to use some other presentation.
With little or no weight below the Rocket Bobber, it'll lay on its side on the water. It'll start to stand up when a fish takes your bait. I like to fish it this way in shallow water as a fixed float. I like slip floats to stand up when the bobber stop hits it so I know the bait is at the correct depth.