New Clothes
New Toys

The jacket that Bella is wearing was sold as Guinea Pig pj's.

What can I say? Bailey and Bella are super small.
As Bella demonstrates, it fits them.
In fact, the flannel is warm enough to be a lightweight coat...

She spent the entire evening in the outfit & was quite comfortable.

BTW, I have no idea why a Guinea Pig would need pj's; other than for an Instagram moment.
"Members of younger generations, such as millennials, tend to treat their pets as their children. Millennials and Gen Xers spend more money on their pets than other generation. They tend to splurge on clothing, toys, and special food for their cats, dogs, and other small pets."
So, a guinea pig with a pair or two of pj's is not that unusual in 2023.

Nor is a sweater for a Chihuahua out of the ordinary.
The scarf probably is strictly photo garb. But not the jacket. That can be quite functional and often appreciated in cold weather.