Healthy Halloween recipes for my daughter who has Prader Willi Syndrome please?

[JessicaSunshine]

Hello, I wonder if any of you lovely lot have any healthy Halloween recipes you would be willing to share? It is for my daughter who has Prader Willi Syndrome, I am collecting recipes as part of a Halloween fundraiser, and they will be hosted on the www.pwsa.co.uk website.
Anything you could contribute would be amazing thank you!
You can see Jessica on her Facebook page www.Facebook.com/jessicasunshinepws

I can't think of anything specific but v interested. I recently saw a picture of a pirate theme party wheere they carved a pirate ship out of a water melon and then filled it with balls of melon and it was in a sea of grapes, looked fantastic. Maybe you could do something along those lines for a centre piece. Obviously not a pirate ship but maybe a skull or something....