I had success making the code I used in Useful Tags mod work with customizable furniture props. Since then, I began drawing parts of that which will become the future Custom Furniture. Here is a sample on the Wooden Wall Shelf:

Planning for this mod will be like:

• Wooden Wall Shelf

• Wooden Shelf

• Kitchen Stove Hood

• Kitchen Sink

• Granite Flower Vase

• Ceramic Flower Vase

I'm planing to use this art changing method for the beds too, so you can change their colors, but as of yet I haven't tried to apply the method for beds, since they are beds not art pieces.

Everything is going well and I hope to bring this mod perhaps in one week.