Maybe you could offer to host a children’s cupcake party if you state a set price and number (say £20 for a party of 10-12 children for example), and do the draw as usual. If you host for free but cover materials you’ll be able to do it cheaper but will probably get more takers if it looks like a good cheap party option. As long as your insurance covers you for teaching/demonstrating you’ll be ok. It could be a decorate your own cake party………..
karen,Gwynedd