Yeah I have some amobii cards whatever they are called. I have swapped almost all villagers already and I just started having others come to the campsite for a day or two
You can get random items if someone is at your island camp site. Your best way to get a lot of bells is shells and fish, especially sharks. And when you are able to swim in the ocean what ever you get out of there adds up and will sell for a decent amount if you fill your pockets.