Pet Memorial Hand Drawn Work

My mom just lost her dog. Her birthday is coming up, and I want to get her something special. I thought it would be nice to have a hand-done work of her and her late dog. I know my mom, and she would prefer a realistic style, however, I am open to drawings, watercolors, etc, as long as it's done by hand. Ideally, I also would like to be able to hand-deliver it to her, rather than have something to print off.