New rescue dog is super shy - toy recommendations to help him open up?

Hey everyone, just adopted a 2-year-old rescue mutt (maybe lab/shepherd mix?) named Buddy. He's been hiding under the couch since we brought him home yesterday, won't take treats from my hand, and seems scared of everything. I bought some basic tennis balls and a rope toy, but he won't even sniff them. Any advice on toys that might help a super shy dog feel more comfortable? I'm worried he'll never come out of his shell :(

First off, THANK YOU for rescuing! It takes time - my terrier mix hid for 3 days when we got her. For toys, start with something quiet and non-threatening. Kongs stuffed with peanut butter (xylitol-free!) worked wonders - she'd lick it while still hiding. Also try a soft plush toy without squeakers - the noise might scare him. Just leave toys near his hiding spot without forcing interaction. He'll come around!

Not a dog expert but as a reptile person - think about environmental enrichment. Maybe a puzzle toy you can put treats in that he can investigate when alone? My bearded dragon took weeks to adjust. Also, are you sure he's a dog? Just kidding! But seriously, give him space. Some of my snakes won't eat for weeks in new homes. Patience is key with all animals.

Ugh dogs are so needy. My cats would never act like this. But if you insist on this dog thing - try cat toys. Seriously. The wand toys with feathers let you interact from a distance without invading his space. My doberman mix (RIP) loved chasing those when he was anxious. Also, make sure the toys aren't too bright or weird looking. Basic colors only.

Dan's wand toy idea is actually good! Interactive toys where YOU control the distance could help build trust. Also seconding the puzzle feeders - Outward Hound makes great ones. Buddy might feel safer 'working' for food when you're not right there. And remember the 3-3-3 rule for rescues: 3 days to decompress, 3 weeks to learn routine, 3 months to feel at home. You're doing great!