Not exactly sure if these all qualify and not all of 'em will be done right away:
1. Install Bali blinds
2. Install the Purple People Eater, oh wait, Purple Line Mover, which will require drilling some holes in various places
3. Underbed storage drawers by Charlie
4. Apply custom graphics to the outside (weather dependent)
5. Replace tan plastic screw covers with black (or another color yet to be determined) covers in kitchen and wherever else they are (someone said in a post there's some by the bed)
6. Custom vinyl wrap for the door - oh wait, just kidding, but it does sound like fun!
7. Custom poster insert for the frig - now that sounds like tons of fun!
8. Maybe add a short "shelf" support on the outside corner of the bed, depending on how much the Select Comfort bed overhangs