This video by Just Basl Productions shows you how to build your own camera rig handles. These grips are not up to the quality of RedRockMicro grips, but if you are looking for really inexpensive handle grips, these would be a good alternative.
2 1/2″ 4″ long galvanized pipe $1.33 each
2 bike handle grips $10.00 for the pair
Epoxy – $4.81
15mm rails – I had extra laying around.
File – you should have one in your tool kit