My daughter has one of these on her door knob at her office, and people steal it to hang on theirs. I originally designed this to give as part of a wedding gift. 
As you can see I put a lot of detail on them I use a patch work of satins, taffeta and such materials for the back ground and embellish with embroidery, vintage lace, beads, vintage buttons, and ribbon. Gotta have that ribbon, it is one of my favorite textiles.
I think this would make a darling gift, or hang it on your own door knob. I have one that says Room service on my door knob.
You can see the vintage buttons at the top by the ribbon hanger, the vintage lace is at the bottom of the do not disturb writing, notice the tiny rose buds that are going across the center, they are done with ribbon embroidery. A lot of work goes into making these little bundles but they are so pretty when finished. I enjoy the process of assembling these and I have other styles with other sayings. You can find them for sale on my ETSY and my Bonanzel, and my other blog Vintage Romance.