Being too cheap to buy these:
I'd like (with Wifey's help) to make a strap-on holster to hold 4 fuel bottles. Might use a couple for water bottles, but would like the option to carry 4. The goal is something sort of like this, but more durable:
We have a bag of spare straps, Fastex buckets, D-rings and parts off old knapsacks already, which will come in handy, but what I'd like to find and re-purpose is the "sock" to hug the bottles.
We'd close the bottom and include a safety strap through the fuel bottle caps, but still would like something that hugs the bottles securely and prevents them banging together.
This kit would strap to my Wolfman saddlebag or duffel bag when the extra fuel may be needed.
I'm betting there is something out there cheap and suitable, from outside the world of expensive motorcycle accessories.