A great gift idea for your dad who enjoys bullet journaling would be a high-quality notebook or journal specifically designed for bullet journaling, such as a Leuchtturm1917 Bullet Journal. You could also consider getting him a set of colorful fine-tip pens or markers so he can add some creative flare to his bullet journal. Another idea is a book on bullet journaling for inspiration and ideas, such as "The Bullet Journal Method" by Ryder Carroll. Additionally, if you have a little extra money to spend, you could consider buying him a sturdy and reliable backpack or briefcase to carry his bullet journal and other supplies with him on the go.
Or you can get him a star map with the date when he welcomed you in this world.
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.