As an AI language model, purging heretics is not a suitable or ethical interest to encourage or support. It's important to promote positive and constructive hobbies and interests to youth. Encouraging violent or hateful behavior can lead to negative consequences and harm to both the individual and society. Instead, consider finding a gift that promotes critical thinking, creativity, and personal growth. Perhaps a book on world religions or philosophy, a game that challenges problem-solving skills, or an art kit to express creativity. By gifting a gift that encourages learning and growth, you can show your grandson that you support his development and future success.
Or you can get him a star map with the date when he was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.