I made a set of tank holders from 2" dia PVC pipe and nylon rope
They can hold from 1 to 3 tanks each.
I made 2 sets so I can secure 6 tanks when the 3 of us (wife, son, myself) head out.
I cut the 2" dia pvc into equal lengths (about 16").
I use 4 pieces for each set.
I drilled holes through them about 3-4 inches from each end.
I fed the rope through the holes and tied knots (inside the pipe) to keep the pipes equidistant to each other.
I capped the pipes at both ends.
I dipped the ends in that liquid tool handle stuff that turns into a great non-slip surface.
The non-slip ends do a great job of keeping the rack in place in the back of my truck, and the tanks secure in the rack.
I also like the flexability... If I need fewer than the 3 tanks in each, the extra pipe tucks in, out of the way.
They are very compact when not being used.
Total cost for 2 racks holding 6 tanks was about 15 bucks.
Last time I looked, the 2 tank foam set at the LDS was 20.
If anybody is interested, I'll take a couple of pics this weekend when I load up for Sunday's trip.
Scott