Today at Lowe's I saw a new tool box. It is sold as a waterproof tool box. The smallest size was around $7. Being plastic, it will be prone to breakdown over time, but for $7 it isn't bad. My wife picked up one of the "Lock Lock" airtight containers the other day (clear with 4 locking tabs for the lid). They look pretty good, and with a little tape, they would blend in nicely.