Great list although allot of them are chokeables. 200 items for Sensory Bins and Sensory Tables! The mega list of ideas for sensory play! Make hundreds of awesome sensory bins or sensory tables with this amazing list of ideas!
Silky soft play dough for kids using 2 ingredients: 1 cup conditioner (cheaper the better), 2 cups cornflour/cornstarch, glitter (optional). I was just thinking about affordable gluten-free play dough.
Make the fish out of cardboard or felt, and thread it to the button. For the aquarium, you just need a box. Remove all 8 flaps, then cut windows in the sides and slots for the fish in the top with a box cutter or exacto knife.