When it comes to DIY or crafting, choosing the right nontoxic glue or adhesive is important. One ubiquitous glue -- rubber cement -- may be a childhood staple, but it should be avoided. Ingredients like acetone, heptane and trichloroethane found in rubber cement make it dangerous when it’s inhaled. The easy alternative is to use white craft glue or all-purpose glue sticks instead of rubber cement. You can even make your own totally nontoxic craft glue at home using pantry staples; just search online for the easy recipe.