General:
* Lettuce (let us)
* Grave (grave)
* Reindeer (rein deer)
* Cinnamon (sin-a-mon)
* Grape (grapes)
* Spare (spare tire)
* Broom (broom)
* Puns (punny)
* I (eye)
Food:
* Pear (pair)
* Chips (chips)
* Donut (doughnut)
* Pickle (pickled)
* Lettuce (lettuce)
* Tomato (to-MAY-to)
* Bacon (bacon)
Animals:
* Ant (aunt)
* Whale (wail)
* Reindeer (rein deer)
* Bear (bare)
* Pig (pig)
* Bat (bat)
* Owl (howl)
Other:
* Time ( thyme)
* Right (write)
* See (sea)
* Spell (spell)
* Pause (paws)
* Sun (son)
* I (eye)
Remember that the humor in a one-word pun often comes from the unexpected connection between the word and its sound-alike.