Shellac is another option. It's cheap, durable, quick drying, easy to apply, and nontoxic both to apply and after application. I recommend spray cans. It goes on gloss, but can be sanded down to the desired mat finish with 400-600 grit or with steel wool. It will change the color tone slightly making it warmer (this is true of most top coats actually) so best to try it on a hidden location first. Odie's is also an excellent choice, but about 5X the cost.