Long body, halter neck, not high cut at the sides where the leg is. Low key colour preferably black, could have some nice trim or embellishment to make it a bit more quirky.
Think I'm asking for the moon on a stick, so failing that, could someone please tell me where to look for long bodied costumes, as that's the most important part of my criteria.
I always used to wear bikinis, but post dc2 I feel the wrinkly skin on my belly may be here to stay, and it doesn't fill me with confidence to have that on show to all and sundry.