Not even allowed to take tubs of yoghurt which I personally think is a bit OTT. Their reasoning is a child might spill it.
I reckon that's OTT, too! I've never heard of a dairy allergy which can be set off by contact (unlike nuts and shellfish)?? I think the child would need to ingest the dairy.

Our kinder has a no-nut policy, which I think is fairly standard these days. Home made cakes or bickies are always welcome. More welcomed than preservative-laden cakes from the supermarket! The kids with allergies have suitable cake in the freezer, which is defrosted so that they can celebrate with the birthday kid. This cake is supplied by the parent of the child with the allergy.

We don't have any parent's who don't like their child to partake in the odd slice of brightly coloured, sugar-containing cake for any reason other than allergies. I am very happy for my kids to sing happy birthday and enjoy a piece of cake. If a parent did have a problem with it, I would suggest that they discuss this with the teacher and perhaps supply a suitable alternative for their own child so that that child might join in the celebration. I don't think all the kids should miss out on a treat because one or two parent's object on the grounds that it's not 'healthy'.

So, to the OP... IMO you should make a nice cake, ensure that none of the ingredients or decorations contain nuts (or traces of) use No Egg if you're concerned (we had a child in my daughter's kinder with an egg allergy and the No Egg works a treat in cakes Most parent's CHOSE to use this product so that the little girl with the allergy could eat the same cake as everyone else... none of the kids even noticed the difference). Decorate the cake with some icing and 100's and 1000's. Take a list of all the cake ingredients to kinder with the cake and be proud of your home made efforts!! When did making a birthday cake for a bunch of kids become so stressful????

You've probably baked it by now, smiles... how did it turn out???