Did this KB workout yesterday, taken from Steve Cotter's Facebook (scaled down of course - he was working up to 2x32kg!)
2H = two hand swings with one KB, LH = left hand only, LH/RH = alternating left hand/right hand swings with one KB, 2KB = one KB in each hand
1 min on, 1 min off (total 25 mins):
2H swings 16kg,
LH/RH swings 16kg,
LH swings 16kg,
RH swings 16kg,
2H swings 24kg,
LH / RH swings 24kg,
2KB swings 16kg,
LH/RH swings 24kg,
2H swings 24kg,
RH swings 16kg,
LH swings 16kg,
LH/RH Swings 16kg,
2H swings 16kg
It was pretty murderous on the grip near the end, especially the one hand rounds. Give it a shot!