This is the sling carrier I use for Chica, but I got it in brown. It's from Dogo, and Chica really likes it.
I would love to have this one, the SnuggleBug by Petflys, now that the weather is colder:
...and I thought this one was neat, but it doesn't come in plus sizes. It's called Cuddle 'n Carry by Cinderooz