I use a large 1" thick black rubber exercise mat to kneel and lay on now when I do any work on a scooter.
With a roll of paper towels under my head - have been known to doze off on the mat while waiting for oil to drain!
I think I related this story about purchasing the mat. I went into Dick's (sporting goods) and bought the mat. At the cash register were two lovely coeds, one in training. They gave me kudos for buying exercise equipment at my age....."Good for you!, that is a great sit-up mat!"
I chucked all the way to my truck!
"This baby is never going to see a sit-up!"
Needs to be an action shot - so we know you're not using AI.

Stig
*don't be afraid to phone for help to get back up. Many seniors perish before they're ever discovered missing!