I had saved several old door knobs from our 1930's house and brought them with us when we moved. I already used most of them but still had the glass one left to make something out of.
For the glass knob I made this:
Pretty simple but I like the contrast of the glass and the old salvaged wood. The wood is left over from my Pallet Texas, the knob and key hole from our old home.
I just cut some wood down to size, sanded, screwed the key hole on, then predrilled a hole to screw my door knob into.
(Only picture I had depicting screw in a door knob)
Simple and effective! Have you created anything for free lately?