I was about to play darts per webcam over the internet - but then I found that - yeah, it seemed a logical thing to have done - I had sawed out the inner circle of the board - so - while the other person got impatient - I tried to fix it by nailing the ring to some box and then nailing the inner circle on too.
Didn´t work - once I started throwing at it - all came apart time and again - in the end it was a hilarious contraption..