Looking online for DIY Kettlebells brings up the standard pipe fittings 'T' bar handle and it is a great solution but definitely not a solution I can take traveling with me.
Here are two solutions I have come up with that have cost me a total of 12 cents!
Below is the video podcast we have made but the written instructions are on the next few pages
Here is the link to the MechanicalMashup website
Step 1: First the supplies needed
The supplies needed are:
1' of 3/4 sched 40 PVC pluming pipe
2' of rope or tubular webbing with at least 700lb breaking strength
1 Linchpin (preferably 3/8 hairpin version)
Work out plate weights
Drill with 3/8 inch bit (only needed for one of the two builds
PVC cutter or saw
utility knife (or a deburing tool)