I just posted that link to show you what the support I mentioned looked like. They're not the exact supports I use.
Mine come in bags of 100, are sized to steel / copper pipe sizes, and are most often seen supporting HVAC line sets. They're available at plumbing houses, HVAC houses, and even my local Graybar branch (for 1/2" only). The price is more like 12 cents apiece.
As a way to keep pipe from rattling in steel studs, they're hard to beat.
