On 26/07/2018 14:41, Bert Coules wrote:
Clive Arthur wrote:

Rather than an inflatable dummy, an inflatable frame made from thin
tubing which you can pressurise to make rigid.Â* Use water to
pressurise it, much less volume to lose quickly.

That does raise the question of how quickly even a smaller amount of
water would drain, and of how to handle it while it was doing so and
after, but it's a clever notion, thanks.

You could use many short hollow rods to make the frame, held rigid with
a spring-tensioned wire up the middle, just like those wooden push-up
toys...

https://www.sensorytoywarehouse.com/...aracter-wooden

Cheers
--
Clive