Made at the request of a work colleague (to be part of a bedroom make-over for her sons fourth birthday):
Please excuse this particularly scruffy part of the garden, it was the only large enough flat bit of lawn I could find!
I used this tutorial (in 2 parts), but modified the assembly of the cover as I was using an upholstery weight fabric rather than sheeting. I hemmed the panels BEFORE joining them together, then closed the bottom end of the pole casings individually once the cover was assembled. The hardest part of the whole operation was inserting the poles into the cover, it felt like trying to dress an uncooperative octopus!
Anyway, job done!