You will also need some bowls, the size depends on the size of your doily, some cling film to cover the bowls and some fabric stiffener. Yes it really is called that but you can use PVA glue instead.
Mix two parts of fabric stiffener with one part of water in a separate bowl. Soak your doily in the is mixture, making sure that he stiffener has soaked in to all parts. Squeeze the excess liquid back into the bowl ( it would have been better if I had used a jug so that I could pour the excess into a bottle for later use) and then drape you doily over the bowl. Make sure the centre of the crochet is at the centre of the base of the bowl and then smooth out the doily into an even shape. At this point I sprinkled some transluscent glitter on to one of the doilys.
Notice I have had to change one of the bowls because the doily was a bit too big.
Leave to dry overnight or at least 12 hours.
As I am writing this as I make the bowls we would all have to wait until tomorrow to see the results so here are some I made earlier.
Lynn and Victoria