That's a cool idea. I like it. Maybe slightly round or angle the visible edges for a more finished look. Also, I'm not the most knowledgeable on this subject, but should the razor slot maybe be finished with a poly or something? Dried wood is considered to have less than 19% moisture content. Could the moisture still promote rust? This is something I've always really wondered in terms of storing razors. I just found this:

Like other hygroscopic materials, wood placed in an environment with stable temperature and relative humidity will eventually reach a moisture content that yields no vapor pressure difference between the wood and the surrounding air. In other words, its moisture content will stabilize at a point called the equilibrium moisture content (EMC). Wood used indoors will eventually stabilize at 8-14% moisture content; outdoors at 12-18%. Hygroscopicity isn't necessarily a bad thing - this allows wood to function as a natural humidity controller in our homes. When the indoor air is very dry, wood will release moisture. When the indoor air is too humid, wood will absorb moisture.


PS- maybe I should start a new thread with this as a discussion...