Question about online customizations and return policy.

So I really wanted to add the coffee scent (it's online only) for a Mocha I just ordered, but I completely forgot to add it in my rush to secure her. Theoretically, if I buy another bear unstuffed customized with the scent, can I just return the unstuffed bear and keep the scent? Has anyone done this or have another way to secure scents? Thank you!