* Simple: My grandmother gave me her heirloom silver teapot.
* Descriptive: The antique dresser, a family heirloom passed down for generations, held secrets whispered through time.
* Figurative: Her talent for storytelling was an heirloom passed down from her grandmother, a vibrant tapestry woven with words.
* Historical: The ancient sword, a prized heirloom of the kingdom, was said to possess mystical powers.
* Humorous: My cat seems to think the scratching post is an heirloom, and treats it with the utmost respect.
The best sentence for you will depend on the context you want to use "heirloom" in.