Hi there, I have some ideas for you. In the nursery, children loved these activities:
1.) Coloured spaghetti
Cook your spaghetti as normal, drain it, pour cold water on it and add some vegetable oil, mix it (so the spaghetti will stay non-sticky). When it is not hot anymore, add your chosen food colouring. You can then add spoons, cups, bowls, cars, plastic animals to the play.
2.) Moonsand
This is one of my favourites! You can create your own moonsand by mixing 8 cups of flour and 1 cup of vegetable oil. You can also add food colouring to make it more fun. The moonsand should be similar to breadcrumbs and you can easily shape it. Add in buckets, containers, spoons, sand toys and moulds.
3.) Jelly play
This play is great for children because they will be experiencing different flavours and smells. Make at least 2 different flavours ;) Add in some plastic figurines, cars, animals, spoons, bowls…
4.) Rice/dry pasta/oats play
Sometimes the simple ideas are the best. Children love taking experiment with rice, pasta and oats, they especially like transferring them. For example, add containers, tubes, sand toys, spoons, bowls to the play. You can also use rice/pasta/oat in your kitchen play for example, your child can “cook” with these ingredients.
At the moment, I don’t remember of more edible or taste-safe messy play, but I am sure that others will give you more tips ;) I got so inspired now, that I will definitely make a blog post about edible messy plays. Thank you for the idea :) and wishing you a fun day with your little one.