"Ruby the pirate found treasure in the rough sea."
"Rex the dinosaur roared loudly in the jungle."
"Rita's rusty robot needs repairing right away."
"The roaring red racecar zoomed down the road."
"Ryan rode his rusty rocket to reach the stars."
"Rachel's rowdy rooster woke the neighborhood."
"Ronnie's rubber duck drifted down the river rapids."
"Rory the rabbit raced 'round the rugged rocks."
"Ricky ran quickly to retrieve his runaway kite."
"Rebecca rode her bicycle rapidly around the park."