I recently bought a pair of 2" heels online and they are about 1/2 size too big. Of course, they are the only size available. Do they make some sort of insert I can put in the toe of the shoe to push my foot back in the shoes, so there's no visible gapping at the heel? I am familiar with heel inserts but was hoping there would be something which might be hidden and give the appearance of proper fit. Thank you.