Finishing baby toys

Hi everyone, looking for some help here, I have made a few small baby rattles with wooden rings which I coloured with food colouring mixed with isopropyl alcohol, left 24 hrs and then gave a light finish of U beauts traditional food safe wax.

well my granddaughter has enjoyed a good chew and suck and the colouring although harmless is “bleding” and giving her blue lips which fortunately just wipes off but is there something which I can use which will seal the colour and still be baby/food safe.

Thanks in advance an apologies if it has already been covered elsewhere.Attachment 463622

G'Day Potts, I've used "Raw Natural Coconut Oil" from the supermarket on some teething rattles I made, which was the recommendation I found on the net.
I've also attached a "Food Safe Finishes" document for further reference.
Cheers, crowie

Thanks Crowie, much appreciated.