Popcorn clicker. Uses a standard keyboard switch. easily available on amazon. i have found that some do click better than other. check the reviews. as ive noticed often people who are using for 3d printed items will say how click they are. the bucket does take a little while to print because of the stripes.

0.2 layer, 15% infill. Ive used Bambu basic for the red and white and 123-3d sand for the corn.