Potion play - use a few different size bowls and containers, children love to pour and mix things up.

Use a shower curtain to protect your table or take it outside 

Use a pipette to add water to the potion mix.

Use a mat on the floor to contain any spillages 

Most importantly try to relax and embrace the mess.

Sensory mixes - use a large enough receptacle, plant trays from Bunnings or warehouse are good options.

Use spoons and scoops from your kitchen

Theme it by adding in your child's favourite toys.