I first carved one out of a bit of walnut that was a friend's award plaque from Northrop Grunman. It was pretty. But when my youngest started racing BMX, I discovered the ODI line of " lock on" bicycle grips. They have a "tack" to them that makes them very grippy, even when gloved, cold, hot-n-sweaty, or whatever is thrown your way. They come in lots of different colors, from lime green, hot pink, to basic black, but the cool thing is how they lock in place: there are two aluminum lock rings that clamp them precisely where you want them. No air pressure, no alcohol, vegetable oil, or hair spray, just a two second twist with an allen wrench, and these babies STAY! There is a thick plastic end cap that is pinched between the grip and the bar (stick) end which is easily drilled for the PTT button. You can buy different lengths of the grips, so the flare where your hand rests can be where YOU want it to be. Me LIKEY.
They cost twenty or so a pair, and if you get tired of the color or want to refresh the grip, inserts are only ten bucks for two. BMX stores tend to have more choices than road bike stores.
http://www.btosports.com/p/odi-emig-v2- ... oCrADw_wcB