Tomato Santa:
Slice off the bottom of tomatoes (so they stand) and cut in half. Place tomatoes cut sides down on a paper towel and remove moisture. Set aside. Cut out rounds from 1/4" (6 mm) thick semi-hard cheese with 1/2" (1.2 cm) diameter round cookie cutter. Put soft cream cheese in a piping bag with a star tip.
Pipe cream cheese on a bottom half of a tomato. Place cheese round on cream cheese, and pipe some more on top of the cheese round. Place top half of tomato on the piped cream cheese. Pipe a dot on top of the tomato. Stick sesame seeds on semi-hard cheese as eyes.
Cucumber Christmas Tree:
Cut 12" (30 cm) long cucumber into 8" (20 cm) and 4" (10 cm) sections.
Slice long cucumber section with a peeler to make ribbons. Cut 1/2" (1.2cm) thick rounds from the short cucumber section.
Fold a thin cucumber ribbon to make an S shape (three or four folds), and pin onto a round cucumber with a plastic stick or toothpick.