I realise that medical tents usually have the markings painted on them but we have a damaged original pyramidal which for obvious reasons we're loath to paint, it would be pointless anyway as you'd still see the holes.
Anyway, I decided to make a cross out of heavy cotton that I could velcro to the tent using double sided tape. If it looks okay on the tent I might make some more although it did take me seven hours.
Making a circle is not as easy as you'd think!
Getting the right colours is important
Nearly there, now the hard part......the sewing!!!
Finished article, looks okay for a first attempt!
Detail of stitching.