|This needs a stretch. (Feel to remove when satisfied of completion.)|
The puppies are the hypothetical litter of Scooby-Doo and Amber. Shaggy Rogers imagined what it would be like to start a family with Crystal when he fell in love with her, which also included their dogs, too.
The puppies were brown and beige, getting their colors from their parents. However, all of them more closely resembled Scooby, even the ones colored like Amber. All five puppies looked almost entirely identical aside from color. They wore blue collars and dogtags with "SD" on them, just like Scooby's collar.
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Scooby-Doo and the Alien Invaders
In Shaggy's daydream, he fantasized about getting married to Crystal, which led to the birth of Shaggy Junior. While they strolled their son along, he lifted up a blanket, revealing the offspring of Scooby-Doo and Amber.
- Scooby-Doo and the Alien Invaders (fantasy, no lines)
- While not explicit, their dogtags, which are identical to their father's name, would seem to suggest that their initials are also "SD".