Stock up with Mr. Pen’s 500-pack of silver-colored thumbtacks. These tacks have a 3/8-inch head and a 5/16-inch needle point, just long enough for the tack to sit flat against a corkboard.

Thumbtacks cost between $5-$40, depending on the brand, style and how many are included in the pack. Thumbtacks FAQ Can you buy packs of all one-color thumbtacks? A. Yes.