Any sugguestions on movable clock arms?

[William de Smet]

Hi there,

It's been a while but still enjoying RR in my sparetime ;-)
A collegue of mine asked me if I could make an instruction clock with
movable arms.
He wants to us it with his Smartboard in his classroom to teach clocktimes.

I think I know how to drag an image but in a circle is not easy?
Then there is the issue of two clock arms and of course the middle of
the clock should stay fixed.

Can anyone give me a clue where and how to start?

Thanks.

Greetings from a cold but sunny Holland.

William de Smet