"Edible Substitutes for Inedible Treats"
Kneaded erasers=Mamba fruit candy sticks
Model Magic Air Dry Clay=frozen whipped cream or stale marshmallows
makeup samples=Hawthorn flakes
Memory foam=Regent Japanese cheese cake snack cakes
packing peanuts=unicorn twist marshmallows
Power cables=Twizzlers
Dense, slow-rise squishies=Publix brand mini cake donuts
Chalk discs=Lorna Doone shortbread cookies
Glue sticks=daiya dairy free mozzarella sticks (this one tastes bad)
[I don't have an image for this one]The very fine snow that forms on top of frozen goods stored in the right conditions in a box freezer=RaceTrac Slushie (specifically Sprite flavor)

Styrofoam paper paper plate=Gerrit's Satellite Wafers 
Specifically this apple pie scented novelty candle that Michael's got exactly one shipment of and then stopped selling