Five Star Gift Ideas

For your grandpa's birthday gift, you could consider the following options based on his interest in pentathlon:

1. A personalized pentathlon medal display: You can create a personalized medal display for your grandpa that showcases his medals from the pentathlon events he has participated in over the years. This gift will help preserve his achievement and motivate him to achieve more.

2. Gym equipment for home workouts: As a pentathlon enthusiast, your grandpa may enjoy working out and staying in shape. Consider getting him some gym equipment, such as a set of dumbbells or a resistance band, so he can do his workouts from home.

3. Pentathlon tickets: If there is an upcoming pentathlon event, you could surprise your grandpa by purchasing tickets for the both of you to attend the event. It will be a memorable experience and a great opportunity for him to see his favorite sport in action.

4. A personalized pentathlon jersey: You could create a personalized pentathlon jersey for your grandpa with his name and favorite number on the back. This will show his love for pentathlon and make him feel special on his birthday.

5. A book on pentathlon: If your grandpa loves reading, consider getting him a book on pentathlon which discusses the history, techniques, and experiences of athletes who have participated in the sport.

Or you can get him a star map with the date when he was born.