Prepare the celery: Use a butter knife or spoon to spread peanut butter along the inside of a celery stalk. This will act as the "log" for your bugs.
Add the raisins: Place raisins (or dried cranberries) on top of the peanut butter. These will represent the "bugs" crawling along the log. You can place them randomly or in a pattern.
Serve & enjoy! Your "bugs on a log" are ready to eat. Enjoy the snack as a fun, healthy treat.