This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
Neat and attractive green-corn holders for table use can be made of small-sized glass drawer knobs, having a bolt 1 in. in length. The bolt head is cut off with a hacksaw, and its body is filed to make four sides running to a taper, leaving enough threads to secure it in the knob. The threads are smeared with white lead, then it is screwed into the knob and sufficient time allowed for the lead to set before using it.
A pair of knobs are required for each ear of corn served. The square bolt end will hold the ear securely while the kernels are eaten from the cob. - Contributed by Victor Labadie, Dallas, Texas.