While I was researching yesterday's post on The Divorcee, I found a terrific online resource for architectural artifacts: Urban Remains in Chicago. I ended up spending a lot of time going through their Art Deco period inventory which includes the 1930s startled cat door stop at top. I'm crazy for authentic Art Deco interiors, but I also know that there is a lot of Deco drivel out there. Deco flourishes can quickly careen into tacky territory. My advice would be that unless you live a Deco era home, go light on the Deco furniture and accessories. The pieces below are ones that I think would look great mixed in with other periods and styles.
A 1920s pendant light with baked black enameled accent.
These 1930s era metal stools are probably too short to be used at a kitchen island or a bar, but could be use for pull up seating around a table of some sort.
A novel pair of armillary table lamps, c. 1930s.
A pair of 1920s chrome plated, cast iron bookends.
I like the looks of this light, although you would really have to find the right space for it.
I like the shape of this mantel, although the varnished oak I'm not so crazy about.
If your first or last name begins with an "E", these door knobs might look nice in your dressing room, powder room, coat closet, etc.