Hiya, it is possible you could encounter some negative or neutral feedback from parents/carers and staff.
Cook books are fab, if you have the time to organise and police/risk assess them I'd say most definitely go for it
you could settle on a price based on cost - if giving your time freely use the printing expense and paper/materials as a guide xx.
Alongside this you could also offer parents the choice on how you approach different types of fundraising.
Maybe send out a questionnaire listing a selection of options - eg a 'We're thinking of fundraising survey, what would you enjoy supporting': Sponsor the staff, sponsor the children, collect coins/items at home, buy raffle tickets, send in money for buying fundraising items, call in to purchase fundraising items, attend a larger fundraising event, provide fundraising items - add a section for suggestions & if possible promote that it's an anonymous feedback survey/request form.
From there you could guage possible responses to the activities you're looking at. It's also possible to look at what you're fundraising for, if its a specific item maybe see if anyone knows where it could be sourced & obtained without setting up a fundraising cause for it.
This is heaps more than you've asked for sorry but to support an activity that you may have to raise funds for - to use an example, how about planning a chocolate trail for Easter/Spring, if you have any links with local stores would they consider sponsoring a donation of chocolate bars? the children could then 'treasure hunt indoors or outdoors for them? - the only care with this are thoughts and feelings surrounding possible requests or invitations from/for the business to supply advertising materials with the donation/sponsorship.
Or hand participation over to parents - Send out activity sheets that can be returned by a deadline with an entry fee - eg: Draw/stick whiskers on a cat, the most whiskers wins a small prize? Spot the difference - correct entries all put into a hat and a winner drawn - Support your childrens rights and mention that by not returning the sheets, if Children don't want to do them doesn't mean you won't accept a donation of the entry monies - make it known how much parent's support means to you. Question to explore, more urgently if you're asked 'Can someone enter the final draw if they pay a fee but do not supply a completed sheet'
Hope this helps a little xx