Found this post on trainyoga.com. Useful information on meditation cushions and also what to do if there isn’t one to hand.
Support Your Spine and Your Focus - If you can’t find a meditation cushion, there are other options - options you have in your house every day. A thick, rolled towel or folded blanket placed in the gap between your bottom and the floor serves the purpose. …
Tags: meditation, meditation cushions, zafu