idiot....... you get them from riding, as someone up there said they're your bodies way of protecting your hands. keep riding, dont wear gloves unless its either extreamley warm (sweaty grips) or extreamley cold (cold hands). gloves will protect your hand but one day you'll forget them and be so dependent upon threm it will hurt to ride.
get some decent grips, *enter* the rental atb grips. thin hard wearing, grippy to the maxxx. mark who i ride with who manages to destroy grips in about a quater of the time it takes everone else has had his around 4 months and they are just starting to show signs of wear :blink:. mine are on some bars in the shed but i intend to put them on my current bars as they are awesome. oh and theyre only like 7 quid or some other reasonable price. you can get them from all good motorbike shops, i got mine off "off road only". remember, the atb grips as the motobike grips will have a larger right hand side grip for the throttle.
hope this helps (Y)