For a "Tere Jaisa Yaar Kahan" beer mug, here are some features and details you might consider:

1. Design: The mug could feature a sleek design with a matte black finish, symbolizing sophistication and elegance. The lyrics "Tere Jaisa Yaar Kahan" could be prominently displayed in stylish typography, evoking the essence of the song.

2. Illustration: A subtle yet impactful illustration could adorn the mug, depicting two friends clinking beer mugs in a celebratory toast. The illustration should capture the essence of friendship and camaraderie, emphasizing the bond shared between friends.

3. Material: Opt for high-quality materials such as ceramic or stainless steel, ensuring durability and longevity. A double-walled construction would also help keep the beer cold for longer periods, enhancing the drinking experience.

4. Capacity: Consider a standard beer mug capacity of around 16 ounces (473 ml), providing ample space for a generous serving of beer while maintaining a comfortable grip.

5. Finish: A glossy finish could add a touch of sophistication to the mug, while also making it easy to clean and maintain.

6. Customization: Offer the option for customization, allowing customers to personalize the mug with their name or a special message, making it a unique and cherished gift for their closest friends.

7. Packaging: Present the beer mug in a stylish and sturdy box, adorned with matching artwork and detailing inspired by the song. This not only adds to the overall aesthetic appeal but also enhances the gift-giving experience.

By incorporating these features and details, you can create a "Tere Jaisa Yaar Kahan" beer mug that not only celebrates friendship but also serves as a timeless keepsake for beer enthusiasts and music lovers alike.