craft workshop: insurance?

[Twistmeandturnme]

I seem to be falling between stools and wondered if anyone has done this (or similar) and can advise me please.
I have volunteered to run some childrens craft workshops at an event. I will be reimbursed for materials and have been given a ticket to the event. They have said I should get some liability insurance. The policies I've found don't seem to cover what I want to do (the workshop aspect).
Can anyone recommend an insurer which would understand what I'm looking for: not stallholder but workshop?
Thanks

[debbs77]

GM Imber might be good xx

[RhinestoneCowgirl]

Are you being paid for the workshops? Seems a bit off to expect you to have insurance if you are volunteer?

[FiveGoMadInDorset]

If you are not being paid for your time or earning anything from these worships I would expect the event to cover your liability

[JoffreyBaratheon]

I use Ian Wallace. That covers workshops/teaching as well as shows, IIRC. They are very helpful on the phone and people I know who have been going to events for years - and those who run events - all recommend them highly.